1. Which number is wrong in the given series, 3,7,7,11,9,13,13,17,15,23 ?

9

23

13

17

Answer: 13

Explanation:


2. Identify the number that does NOT belong in the given series. 5, 9, 17, 29, 55, 65 ?

55

29

9

5

Answer: 55

Explanation:


3. Which number will replace the question mark (?) in the following series, 1, 4, 3, 4, 7, 7, 13, 13, ?

20

22

31

21

Answer: 21

Explanation:


4. Which number will replace the question mark (?) in the following series, 7, 14, 33, 70, 131, ?

190

218

131

222

Answer: 222

Explanation:


5. Which letter-cluster will replace the question mark(?) in the following series? XCA, WDZ, UFX, RIU, NMQ ?

JFU

IKJ

JKO

IRL

Answer: IRL

Explanation:


6. Identify the number that does NOT belong in the given series. 1, 8, 27, 64, 125, 216, 344, 512, 729 ?

344

729

64

512

Answer: 344

Explanation:


7. Which letter will come next in the following series Z,U,Q,N,L,____ ?

K

H

G

M

Answer: K

Explanation:


8. Which number will replace the question mark (?) in the following series, 3, 7, 16, 35, ?, 153 ?

84

74

78

63

Answer: 74

Explanation:


9. Which number will replace the question mark (?) in the following series, 2, 5, 11, 23, 44, ?

77

51

63

66

Answer: 77

Explanation:


10. Select the combinations of letters that when sequentially placed in the gaps of the given letter series will complete the series. cb_db_cba_bc_bad_c ?

acdeb

cabde

acbed

dcbcb

Answer: acdeb

Explanation: