Odd Man Out and Series Page-2

9) 10, 14, 16, 18, 21, 24, 26
(A) 26
(B) 24
(C) 21
(D) 18

Answer: Option C
Explanation: Each of the numbers except 21 is an even number.

10) 16, 25, 36, 72, 144, 196, 225
(A) 36
(B) 72
(C) 196
(D) 225

Answer: Option B
Explanation: Each of the numbers except 72 is a perfect square.

11) 331, 482, 551, 263, 383, 362, 284
(A) 263
(B) 383
(C) 331
(D) 551

Answer: Option B
Explanation: In each number except 383, the product of first and third digits is the middle one.

12) 835, 734, 642, 751, 853, 981, 532
(A) 751
(B) 853
(C) 981
(D) 532

Answer: Option A
Explanation: In each number except 751, the difference of third and first digit is the middle one.

13) 41, 43, 47, 53, 61, 71, 73, 81
(A) 61
(B) 71
(C) 73
(D) 81

Answer: Option D
Explanation: Each of the numbers except 21 is a prime number.

14) 3, 5, 7, 12, 17, 19
(A) 19
(B) 17
(C) 5
(D) 12

Answer: Option D
Explanation: Each of the numbers is a prime number except 12.