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641. Which number will replace the question mark (?) in the following series? 3, 4, 7, 11, 18, ?
- A. 22
- B. 25
- C. 29
- D. 31
Answer: 29
Explanation: Following the sequential progression rule of the given series, option (c) '29' correctly replaces the question mark (?).
642. Which letter will replace the question mark (?) in the following series? B, D, G, I, L, ?, Q
- A. P
- B. N
- C. M
- D. O
Answer: N
Explanation: Following the sequential progression rule of the given series, option (c) 'M' correctly replaces the question mark (?).
643. Which number will replace the question mark (?) in the following series? 4, 10, 18, 38, ?, 150
- A. 78
- B. 74
- C. 84
- D. 70
Answer: 74
Explanation: Following the sequential progression rule of the given series, option (d) '70' correctly replaces the question mark (?).
644. Which number will replace the question mark (?) in the following series? 0, 1, 5, 14, 30, ?
- A. 43
- B. 53
- C. 55
- D. 46
Answer: 55
Explanation: Following the sequential progression rule of the given series, option (d) '46' correctly replaces the question mark (?).
645. Which letter-cluster will replace the question mark (?) in the following series? BECD, FIGH, KNLM, ?, XAYZ
- A. PSQR
- B. QWSU
- C. QTRS
- D. ORPQ
Answer: QTRS
Explanation: Following the sequential progression rule of the given series, option (b) 'QWSU' correctly replaces the question mark (?).
646. Which letter will replace the question mark(?) in the following series? M, N, O, L, Q, J, ?, H
- A. R
- B. S
- C. K
- D. J
Answer: S
Explanation: Following the sequential progression rule of the given series, option (a) 'R' correctly replaces the question mark (?).
647. Which number will replace the question mark(?) in the following series? 7, 10, 16, 19, 25,?
- A. 29
- B. 33
- C. 31
- D. 28
Answer: 28
Explanation: Following the sequential progression rule of the given series, option (d) '28' correctly replaces the question mark (?).
648. Which letter-cluster will replace the question mark(?) in the following series? BZD, DXF, GUI, ?, PLR
- A. KQM
- B. MOQ
- C. KPN
- D. LRT
Answer: KQM
Explanation: Following the sequential progression rule of the given series, option (a) 'KQM' correctly replaces the question mark (?).
649. Which number will replace the question mark(?) in the following series? 3, 5, 7, 8, 15, ?, 31, 26
- A. 24
- B. 14
- C. 21
- D. 18
Answer: 14
Explanation: Following the sequential progression rule of the given series, option (d) '18' correctly replaces the question mark (?).
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