Answer: A) 98 Explanation: The given number series is  3, 5, 8, 15, 28, 51, ? Here the pattern it follows is 3 3 + 2 = 5 ( add prime number less than 3 i.e, 2) 5 + 3 = 8 (3 is prime number less than 5) 8 + 7 = 15 (7 is prime number less than 8) 15 + 13 = 28 (13 is prime number less than 15) 28 + 23 = 51 (23 is prime number less than 28) 51 + 47 = 98 (47 is prime number less than 51)   Hence, the next number in the given number series is 98.

Answer: A) 12 Explanation: The given series follows a pattern that,   4 + 32 = 4 + 9 = 1313 + 52 = 13 + 25 = 3838 + 72 = 38 + 49 = 8787 + 92 = 87 + 81 = 198    Hence, the odd man in the given number series is 12.

Answer: B) 121 Explanation: Given number series is 61, 66, 83, 121, 185 Here the given series follows a pattern that,   6161 + 22 + 1 = 6666 + 42 + 1 = 8383 + 62 + 1 = 120 (not 121)120 + 82 + 1 = 185     Hence, the odd man in the given series is 121.

Answer: A) 256 & 3125 Explanation: The above given sequence follows a pattern that,   122 = 433 = 2744 = 25655 = 312566 = 46656and so on... Therefore, the next two numbers in the given sequence is 256 & 3125.

Answer: A) 35/36 Explanation: When two dice are thrown simultaneously, the probability is n(S) = 6x6 = 36 Required, the sum of the two numbers that turn up is less than 12 That can be done as n(E) = { (1,1), (1,2), (1,3), (1,4), (1,5), (1,6)(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)(6,1), (6,2), (6,3), (6,4), (6,5) } = 35 Hence, required probability = n(E)/n(S) = 35/36.

Answer: A) 65 Explanation: The given number series is 8, 14, 24, 40, ? . It follows a pattern that, 8 8 x 1.5 + 2 = 14 14 x 1.5 + 3 = 24 24 x 1.5 + 4 = 40 40 x 1.5 + 5 = 65   Hence, the next number in the given number series is 65.