Question

What number comes next in the series? 31, 1031, 402, 16,

Answer 1

Answer :-

= 8

Explanation :-

00031 = 0 + 0 + 0 + 3 + 1 = 4 (5 digit no and sum of digits)

Similarly,

1031 = 1 + 0 + 3 + 1 = 5 (4 digit number and sum of digits)

402 = 4 + 0 + 2 = 6 ( 3 digit number and sum of digits)

16 = 1 + 6 = 7 (2 digit number and sum of digits)

Thus, here sum of digits in a number is taken and number is decreased by 1 place at each time.

Hence, The answer is 8. ( sum of digit is 8 and no of digits is 1)