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Number Series - Verbal and Reasoning

Q1:

61 57 50 61 43 36 61

A 29 61

B 27 20

C 31 61

D 22 15

E 29 22

ANS:E - 29 22

This is an alternating repetition series, in which a random number, 61, is interpolated as every third number into an otherwise simple subtraction series. Starting with the second number, 57, each number (except 61) is 7 less than the previous number.