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561. Which letter-cluster will replace the question mark(?) in the following series ? PSV , UXA, ZCF, EHK,?
- A. JMO
- B. IMP
- C. JMP
- D. JNP
Answer: JMP
Explanation: In the letter series PSV, UXA, ZCF, EHK, each term advances by (+5, +5, +5) in alphabetical position, giving 'JMP'.
562. Which letter will replace the question mark(?) in the following series? R , C , T , E , V , ? , X , I
- A. Y
- B. W
- C. G
- D. F
Answer: G
Explanation: Following the sequential progression rule of the given series, option (a) 'Y' correctly replaces the question mark (?).
563. Which number will replace the question mark (?) in the following series? 116 , 128 , 146 , 170 , 200 , ?
- A. 232
- B. 236
- C. 264
- D. 260
Answer: 236
Explanation: First differences are [12, 18, 24, 30] (increasing by +6 each step); next difference is +36, so 200 + (36) = 236.
564. Which letter cluster will replace the question mark (?) in the following series? SWA , OAW , KES , ? , CMK
- A. GIO
- B. GHO
- C. FIP
- D. FIO
Answer: GIO
Explanation: Following the sequential progression rule of the given series, option (d) 'FIO' correctly replaces the question mark (?).
565. Which letter will replace the question mark (?) in the following series? D , J , ? , S , V , X
- A. O
- B. M
- C. P
- D. Q
Answer: O
Explanation: Following the sequential progression rule of the given series, option (c) 'P' correctly replaces the question mark (?).
566. Which number will replace the question mark (?) in the following series? 102 , 110 , 126 , 150 , 182 , ?
- A. 246
- B. 214
- C. 220
- D. 222
Answer: 222
Explanation: First differences are [8, 16, 24, 32] (increasing by +8 each step); next difference is +40, so 182 + (40) = 222.
567. Which number will replace the question mark (?) in the following series ? 118, 129, 141, 154, 168, ?
- A. 184
- B. 182
- C. 181
- D. 183
Answer: 183
Explanation: First differences are [11, 12, 13, 14] (increasing by +1 each step); next difference is +15, so 168 + (15) = 183.
568. Which letter will replace the question mark (?) in the following series? P, U, R, W, T, ?, V , A, X
- A. X
- B. Y
- C. W
- D. Z
Answer: Y
Explanation: Following the sequential progression rule of the given series, option (c) 'W' correctly replaces the question mark (?).
569. Which letter-cluster will replace the question mark (?) in the following series? PRT, TVX, ?, BDF, FHJ
- A. XZC
- B. XAB
- C. XZB
- D. YZB
Answer: XZB
Explanation: Following the sequential progression rule of the given series, option (a) 'XZC' correctly replaces the question mark (?).
570. Which number will replace the question mark (?) in the following series? 115, ?, 134, 145, 157, 170
- A. 124
- B. 122
- C. 125
- D. 127
Answer: 124
Explanation: Following the sequential progression rule of the given series, option (c) '125' correctly replaces the question mark (?).
571. Which letter-cluster will replace the question mark (?) in the following series? FKP, HNT, JQX, LTB,?
- A. MWF
- B. NWG
- C. NXF
- D. NWF
Answer: NWF
Explanation: In the letter series FKP, HNT, JQX, LTB, each term advances by (+2, +3, +4) in alphabetical position, giving 'NWF'.
572. Which letter will replace the question mark (?) in the following series? X, R, ?, I, F, D, C
- A. Q
- B. M
- C. N
- D. O
Answer: M
Explanation: Following the sequential progression rule of the given series, option (b) 'M' correctly replaces the question mark (?).
573. Select the letter cluster that will come next in the following series. ADH , XAE , UXB , RUY , ?
- A. OSV
- B. PRV
- C. ORV
- D. ORU
Answer: ORV
Explanation: In the letter series ADH, XAE, UXB, RUY, each term advances by (-3, -3, -3) in alphabetical position, giving 'ORV'.
574. Which number will replace the question mark (?) in the following series? 120 , 128 , 144 , 168 , ? , 240
- A. 200
- B. 216
- C. 208
- D. 202
Answer: 200
Explanation: Following the sequential progression rule of the given series, option (c) '208' correctly replaces the question mark (?).
575. Select the letter cluster that will come next in the following series. GZI , HYJ , IXK , JWL , ?
- A. JVN
- B. KVM
- C. LVM
- D. KUM
Answer: KVM
Explanation: In the letter series GZI, HYJ, IXK, JWL, each term advances by (+1, -1, +1) in alphabetical position, giving 'KVM'.
576. Select the option that will come next in the following series. 2 , 7 , 17 , 32 , 52 , ?
- A. 77
- B. 134
- C. 126
- D. 102
Answer: 77
Explanation: First differences are [5, 10, 15, 20] (increasing by +5 each step); next difference is +25, so 52 + (25) = 77.
577. Which number will replace the question mark (?) in the following series? K , M , O , ? , S , U , ? , Y
- A. R , W
- B. P , W
- C. Q , W
- D. Q , X
Answer: Q , W
Explanation: Following the sequential progression rule of the given series, option (d) 'Q , X' correctly replaces the question mark (?).
578. Select the option that will come next in the following series. 57 , 62 , 31 , 36 , 18 , ?
- A. 34
- B. 23
- C. 19
- D. 36
Answer: 23
Explanation: Following the sequential progression rule of the given series, option (d) '36' correctly replaces the question mark (?).
579. Select the option that will come next in the following series. OBE , PDH , QFK , RHN , ?
- A. SKQ
- B. RJQ
- C. SJQ
- D. SJP
Answer: SJQ
Explanation: In the letter series OBE, PDH, QFK, RHN, each term advances by (+1, +2, +3) in alphabetical position, giving 'SJQ'.
580. Find the term that will replace the ? in the series. Z , X , V , ? , R , P , ?
- A. S , N
- B. S , O
- C. T , O
- D. T , N
Answer: T , N
Explanation: Following the sequential progression rule of the given series, option (c) 'T , O' correctly replaces the question mark (?).
581. Find the next term in the series. 5 , 9 , ? , 29 , 45
- A. 25
- B. 17
- C. 15
- D. 19
Answer: 17
Explanation: Following the sequential progression rule of the given series, option (a) '25' correctly replaces the question mark (?).
582. Find the next term in the series. CBA , FGE , ILI , LQM , ?
- A. OVP
- B. NVQ
- C. OUP
- D. OVQ
Answer: OVQ
Explanation: In the letter series CBA, FGE, ILI, LQM, each term advances by (+3, +5, +4) in alphabetical position, giving 'OVQ'.
583. Select the letter cluster that will come next in the following series. BOP , DPN , FQL , HRJ, ?
- A. JSH
- B. JSI
- C. ISH
- D. ITI
Answer: JSH
Explanation: In the letter series BOP, DPN, FQL, HRJ, each term advances by (+2, +1, -2) in alphabetical position, giving 'JSH'.
584. Which letter will replace the question mark (?) in the following series? A, B, E , J , Q , ?
- A. A
- B. Y
- C. X
- D. Z
Answer: Z
Explanation: Following the sequential progression rule of the given series, option (c) 'X' correctly replaces the question mark (?).
585. Which number will replace the question mark (?) in the following series? 3, 4, 5, 6, 9, 10, 11, 12, 15, ?
- A. 16
- B. 17
- C. 14
- D. 18
Answer: 16
Explanation: Following the sequential progression rule of the given series, option (c) '14' correctly replaces the question mark (?).
586. Select the combinations of letters that when sequentially placed in the gaps of the given letter series will complete the series. ca_bab_ad_ab_ad_ab
- A. bcdcb
- B. cdbcd
- C. dcbcb
- D. dcabc
Answer: dcbcb
Explanation: Following the sequential progression rule of the given series, option (c) 'dcbcb' correctly replaces the question mark (?).
587. Which number will replace the question mark (?) in the following number series? 16 , 24 , 36 , ? , 81
- A. 54
- B. 52
- C. 61
- D. 58
Answer: 54
Explanation: Following the sequential progression rule of the given series, option (c) '61' correctly replaces the question mark (?).
588. Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series. cd_ab_cd_abb_dda_b
- A. bbcdb
- B. dbdcb
- C. dbcbc
- D. cbdab
Answer: dbdcb
Explanation: Following the sequential progression rule of the given series, option (d) 'cbdab' correctly replaces the question mark (?).
589. Which number will replace the question mark (?) in the following series. 7 , 11 , 18 , 29 , ? , 76
- A. 53
- B. 61
- C. 44
- D. 47
Answer: 47
Explanation: Following the sequential progression rule of the given series, option (b) '61' correctly replaces the question mark (?).
590. Select the combination of the letters that when sequentially placed in the gaps of the given letter series will complete the series. db_cbd_ba_bd_bac_d
- A. adbcd
- B. adcdb
- C. bdcbd
- D. dacdb
Answer: adcdb
Explanation: Following the sequential progression rule of the given series, option (d) 'dacdb' correctly replaces the question mark (?).
591. Which number will replace the question mark (?) in the following series ? 5 , 12 , 26 , 54 , ?
- A. 112
- B. 92
- C. 110
- D. 98
Answer: 110
Explanation: Following the sequential progression rule of the given series, option (b) '92' correctly replaces the question mark (?).
592. Select the term that will come next in the following series. 3 , 5 , 10 , 20 , 37 , ?
- A. 58
- B. 61
- C. 69
- D. 63
Answer: 63
Explanation: Following the sequential progression rule of the given series, option (b) '61' correctly replaces the question mark (?).
593. A letter series is given below in which some letters are missing. Select the option which gives the letters that can fill these blanks in that order. Ba_d_cb_cdb_ba_dbc
- A. cbcad
- B. cbacc
- C. abbdc
- D. bcabc
Answer: cbacc
Explanation: Following the sequential progression rule of the given series, option (d) 'bcabc' correctly replaces the question mark (?).
594. Find the next number in the given series. 3 , 13 , 31 , ? , 91
- A. 48
- B. 63
- C. 69
- D. 57
Answer: 57
Explanation: Following the sequential progression rule of the given series, option (a) '48' correctly replaces the question mark (?).
595. A letter series is given below in which some letters are missing. Select the option that gives the letters that can fill these blanks in that order. a_ca_bab_ad_abc_db
- A. bdcab
- B. bdcba
- C. bcdba
- D. bddac
Answer: bdcba
Explanation: Following the sequential progression rule of the given series, option (a) 'bdcab' correctly replaces the question mark (?).
596. Select the term that will come in place of ?. 7 , 11 , 19 , 31 , ? , 67
- A. 45
- B. 51
- C. 43
- D. 47
Answer: 47
Explanation: Following the sequential progression rule of the given series, option (d) '47' correctly replaces the question mark (?).
597. Which number will replace the question mark (?) in the following series? 2, 3, 6, 10, 17, 28, ?
- A. 45
- B. 39
- C. 43
- D. 46
Answer: 46
Explanation: Following the sequential progression rule of the given series, option (a) '45' correctly replaces the question mark (?).
598. Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series. Dc_abc_cb_bcd_ba_c
- A. dbacb
- B. cbadb
- C. bdacb
- D. bdcab
Answer: bdacb
Explanation: Following the sequential progression rule of the given series, option (d) 'bdcab' correctly replaces the question mark (?).
599. Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series. Bac_cab_cd_a_ac_ca
- A. bdabc
- B. dcbac
- C. cadbc
- D. dacbd
Answer: dacbd
Explanation: Following the sequential progression rule of the given series, option (a) 'bdabc' correctly replaces the question mark (?).
600. Which number will replace the question mark(?) in the following series? 98, 95, 86, 82, 66, ?, 36
- A. 58
- B. 60
- C. 61
- D. 63
Answer: 61
Explanation: Following the sequential progression rule of the given series, option (b) '60' correctly replaces the question mark (?).
601. Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series. ac_d_b_cbdd_a_bddb
- A. bdabc
- B. bdbca
- C. bdcab
- D. cbdbc
Answer: bdabc
Explanation: Following the sequential progression rule of the given series, option (d) 'cbdbc' correctly replaces the question mark (?).
602. Which number will replace the question mark (?) in the following series? 2, 5, 11, 23, 44, ?
- A. 77
- B. 51
- C. 63
- D. 66
Answer: 77
Explanation: Following the sequential progression rule of the given series, option (d) '66' correctly replaces the question mark (?).
603. Which number will replace the question mark (?) in the following series? 3, 7, 16, 35, ?, 153
- A. 84
- B. 74
- C. 78
- D. 63
Answer: 74
Explanation: Following the sequential progression rule of the given series, option (b) '74' correctly replaces the question mark (?).
604. Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series. B_bab_bc_abbb_ba_b
- A. cbbac
- B. cbabc
- C. cbbcb
- D. bcbab
Answer: cbbcb
Explanation: Following the sequential progression rule of the given series, option (c) 'cbbcb' correctly replaces the question mark (?).
605. In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series. 2, 4, 6, 8, 10, (12), 14, 16, (18), 20
- A. The first bracketed number is correct and the second is incorrect.
- B. The first bracketed number is incorrect and the second is correct.
- C. Both the bracketed numbers are correct.
- D. Both the bracketed numbers are incorrect.
Answer: Both the bracketed numbers are correct.
Explanation: Following the sequential progression rule of the given series, option (a) 'The first bracketed number is correct and the second is incorrect.' correctly replaces the question mark (?).
606. Which number will replace the question mark(?) in the following series? 2, 5, 10, 17, 26, 37, ?, 65, 82, 101
- A. 48
- B. 42
- C. 50
- D. 49
Answer: 50
Explanation: Following the sequential progression rule of the given series, option (d) '49' correctly replaces the question mark (?).
607. Identify the number that does NOT belong in the given series. 1, 8, 27, 64, 125, 216, 344, 512, 729
- A. 344
- B. 729
- C. 64
- D. 512
Answer: 344
Explanation: Following the sequential progression rule of the given series, option (b) '729' correctly replaces the question mark (?).
608. In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series. 1, 9, 25, 49, (81), 121, 169, (215), 289
- A. Both the bracketed numbers are incorrect.
- B. Both the bracketed numbers are correct.
- C. The first bracketed number is correct and the second is incorrect.
- D. The first bracketed number is incorrect and the second is correct.
Answer: The first bracketed number is correct and the second is incorrect.
Explanation: Following the sequential progression rule of the given series, option (c) 'The first bracketed number is correct and the second is incorrect.' correctly replaces the question mark (?).
609. Which letter-cluster will replace the question mark(?) in the following series? XCA, WDZ, UFX, RIU, NMQ, ?
- A. JFU
- B. IKJ
- C. JKO
- D. IRL
Answer: IRL
Explanation: Following the sequential progression rule of the given series, option (b) 'IKJ' correctly replaces the question mark (?).
610. Which letter will replace the question mark (?) in the following series? B, E, H, K, N, ?
- A. O
- B. P
- C. Q
- D. N
Answer: Q
Explanation: Following the sequential progression rule of the given series, option (b) 'P' correctly replaces the question mark (?).
611. Which letter-cluster will replace the question mark (?) in the following series? IVM, HWL, GXK, FYJ, ?
- A. EZH
- B. EAH
- C. EZI
- D. DZI
Answer: EZI
Explanation: In the letter series IVM, HWL, GXK, FYJ, each term advances by (-1, +1, -1) in alphabetical position, giving 'EZI'.
612. Which number will replace the question mark (?) in the following series? 7, 14, 33, 70, 131, ?
- A. 190
- B. 218
- C. 131
- D. 222
Answer: 222
Explanation: Following the sequential progression rule of the given series, option (a) '190' correctly replaces the question mark (?).
613. Which number will replace the question mark (?) in the following series? 1, 4, 3, 4, 7, 7, 13, 13, ?
- A. 20
- B. 22
- C. 31
- D. 21
Answer: 21
Explanation: Following the sequential progression rule of the given series, option (b) '22' correctly replaces the question mark (?).
614. Which number will replace the question mark(?) in the following series? 0.15, 0.20, 0.30, 0.45, 0.65 ?
- A. 0.90
- B. 0.80
- C. 0.95
- D. 0.85
Answer: 0.90
Explanation: Following the sequential progression rule of the given series, option (d) '0.85' correctly replaces the question mark (?).
615. Which letter will replace the question mark (?) in the following series? C, F, K, R, A, ?
- A. M
- B. I
- C. J
- D. L
Answer: L
Explanation: Following the sequential progression rule of the given series, option (b) 'I' correctly replaces the question mark (?).
616. Which number will replace the question mark (?) in the following series? 3 , ? , 101 , 10202
- A. 10
- B. 99
- C. 100
- D. 95
Answer: 10
Explanation: Following the sequential progression rule of the given series, option (d) '95' correctly replaces the question mark (?).
617. Identify the number that does NOT belong in the given series. 2, 6, 6, 10, 8, 12, 12, 15, 14, 18
- A. 15
- B. 8
- C. 18
- D. 12
Answer: 15
Explanation: Following the sequential progression rule of the given series, option (c) '18' correctly replaces the question mark (?).
618. Which letter-cluster will replace the question mark (?) in the following series? CFZ, EGX, HIU, JLS, MPP, ?
- A. NTO
- B. OUN
- C. MSN
- D. OTN
Answer: OUN
Explanation: Following the sequential progression rule of the given series, option (a) 'NTO' correctly replaces the question mark (?).
619. Which letter-cluster will replace the question mark (?) in the following series? 1, 5, 5, 25, ?, 3125
- A. 215
- B. 125
- C. 225
- D. 375
Answer: 125
Explanation: Following the sequential progression rule of the given series, option (b) '125' correctly replaces the question mark (?).
620. Which letter will replace the question mark (?) in the following series? GXB, JVD, MTF, PRH,?
- A. SQJ
- B. RPJ
- C. RQI
- D. SPJ
Answer: SPJ
Explanation: In the letter series GXB, JVD, MTF, PRH, each term advances by (+3, -2, +2) in alphabetical position, giving 'SPJ'.
621. Which letter will replace the question mark (?) in the following series? X, V , T, R, P,?
- A. Q
- B. S
- C. N
- D. O
Answer: N
Explanation: Following the sequential progression rule of the given series, option (d) 'O' correctly replaces the question mark (?).
622. Which number will replace the question mark (?) in the following series? 60, 64, 32, 36, 18,?
- A. 22
- B. 11
- C. 15
- D. 20
Answer: 22
Explanation: Following the sequential progression rule of the given series, option (c) '15' correctly replaces the question mark (?).
623. Which letter will replace the question mark(?) in the following series? A, D, G, J, M, ?
- A. Q
- B. P
- C. O
- D. N
Answer: P
Explanation: Following the sequential progression rule of the given series, option (d) 'N' correctly replaces the question mark (?).
624. Which number will come next in the following series? 9, 196, 25, 169, 49, 144, 81, ____
- A. 121
- B. 100
- C. 64
- D. 36
Answer: 121
Explanation: Following the sequential progression rule of the given series, option (a) '121' correctly replaces the question mark (?).
625. Which letter-cluster will replace the question mark(?) in the following series? EZI, FYJ, GXK, HWL, ?
- A. MVM
- B. MVN
- C. JVM
- D. IVM
Answer: IVM
Explanation: In the letter series EZI, FYJ, GXK, HWL, each term advances by (+1, -1, +1) in alphabetical position, giving 'IVM'.
626. Which letter cluster will replace the question mark (?) in the following series? DEY , FFW, IGT, KHR, NIO, ?
- A. QJM
- B. PJM
- C. QJN
- D. PJN
Answer: PJM
Explanation: Following the sequential progression rule of the given series, option (c) 'QJN' correctly replaces the question mark (?).
627. Which number will replace the question mark (?) in the following series? 1,2,5,?,677
- A. 11
- B. 25
- C. 26
- D. 95
Answer: 26
Explanation: Following the sequential progression rule of the given series, option (a) '11' correctly replaces the question mark (?).
628. Which letter will replace the question mark (?) in the following series? C , E , I , O , ?
- A. A
- B. W
- C. Z
- D. X
Answer: W
Explanation: Following the sequential progression rule of the given series, option (b) 'W' correctly replaces the question mark (?).
629. Which number will replace the question mark (?) in the following series? 136,137,135,138,134,139, ?
- A. 136
- B. 138
- C. 139
- D. 133
Answer: 133
Explanation: Following the sequential progression rule of the given series, option (b) '138' correctly replaces the question mark (?).
630. Which set of letters will come next in the following series? BDZ, DGX, FJV , HMT, JPR, ______
- A. MSP
- B. LSP
- C. LTP
- D. LSO
Answer: LSP
Explanation: In the letter series BDZ, DGX, FJV, HMT, JPR, each term advances by (+2, +3, -2) in alphabetical position, giving 'LSP'.
631. Which letter will replace the question mark(?) in the following series? Z,X,V ,T,R,?
- A. S
- B. O
- C. P
- D. Q
Answer: P
Explanation: Following the sequential progression rule of the given series, option (b) 'O' correctly replaces the question mark (?).
632. Which number will replace the question mark ? in the following series. 5 7 11 14 23 ? 43 48
- A. 27
- B. 39
- C. 31
- D. 26
Answer: 27
Explanation: Following the sequential progression rule of the given series, option (d) '26' correctly replaces the question mark (?).
633. Which letter cluster will replace the question mark ? in the following series? HKNQ, JIPO, KHQN, MFSL, ?
- A. ODUJ
- B. NGRM
- C. NEKT
- D. NETK
Answer: NETK
Explanation: Following the sequential progression rule of the given series, option (d) 'NETK' correctly replaces the question mark (?).
634. Which number will replace the question mark ? in the following series: 7 9 13 15 ? 21 25
- A. 18
- B. 20
- C. 17
- D. 19
Answer: 19
Explanation: Following the sequential progression rule of the given series, option (c) '17' correctly replaces the question mark (?).
635. Which number will replace the question mark (?) in the following series? 3, 5, 10, 18, 29, ?, 60
- A. 46
- B. 37
- C. 45
- D. 43
Answer: 43
Explanation: Following the sequential progression rule of the given series, option (b) '37' correctly replaces the question mark (?).
636. Which letter will replace the question mark (?) in the following series? J, Q, L, O, N, ?, P, K
- A. M
- B. I
- C. K
- D. L
Answer: M
Explanation: Following the sequential progression rule of the given series, option (d) 'L' correctly replaces the question mark (?).
637. Which number will replace the question mark(?) in the following series? 1, 2, 6, 12, ?, 72, 216
- A. 24
- B. 32
- C. 36
- D. 48
Answer: 36
Explanation: Following the sequential progression rule of the given series, option (c) '36' correctly replaces the question mark (?).
638. Which number will replace the question mark(?) in the following series? 1, 3, 4, 7, ?, 18, 29
- A. 10
- B. 13
- C. 15
- D. 11
Answer: 11
Explanation: Following the sequential progression rule of the given series, option (d) '11' correctly replaces the question mark (?).
639. Which number will replace the question mark(?) in the following series? 3, 7, 13, 27, ?, 107, 213
- A. 63
- B. 53
- C. 58
- D. 49
Answer: 53
Explanation: Following the sequential progression rule of the given series, option (c) '58' correctly replaces the question mark (?).
640. Which letter-cluster will replace the question mark(?) in the following series? Y , X , V , S , ? , J
- A. O
- B. N
- C. Q
- D. P
Answer: O
Explanation: Following the sequential progression rule of the given series, option (b) 'N' correctly replaces the question mark (?).
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