Number Series 416) Find the next two numbers in the series, 16, 20, 46, 24, 28, 56, 32 _, _
Answer: A Explanation: In this series, every third number follows a different pattern; it begins with 46 then 10 is added to this number to arrive at the next number (56). The main series begins with 16 then 4 is added to each number to arrive at the next number. So, the next numbers are 36(32+4) and 66 (56+10). 17) Find the next number in the series 13, 17, 19, 23, 29, _.
Answer: C Explanation: The given series consists of consecutive prime numbers in increasing order, so the next number (prime number) would be 31. 18) Find the missing number in the series; 196, 169, 144, _, 100, 81.
Answer: C Explanation: The series consists of squares of consecutive natural numbers in decreasing order, i.e., the numbers 196, 169, 144, _, 100, 81 can be written as 14^{2}, 13^{2}, 12^{2}, 11^{2}, 10^{2}, 9^{2}. So, the missing number is 121. 19) Find the next number in the series 4, 6,8,9,10,12, _.
Answer: A Explanation: The series consists of consecutive composite numbers, so the missing number is 14. 20) Which number should come next in the series, 12, 36,109, 329, _?
Answer: A Explanation: 12^{*3+0}, 36^{*3+1}, 109^{*3+2}, 329^{*3+3}, _ , Therefore, the next number would be, (329 * 3 +3) 990. Number Series 1 Number Series 2 Number Series 3
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