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Which of the following numbers will replace the question mark (?) in the given series? 57, 54, 52, 49, 47, 44, 42, ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
57, 54, 52, 49, 47, 44, 42, ?

A.

27

B.

40

C.

47

D.

39

Correct option is D

The pattern in the series is a sequence of alternating subtractions: -3, -2, -3, -2, and so on.
Following this pattern:
57 - 3 = 54
54 - 2 = 52
52 - 3 = 49
49 - 2 = 47
47 - 3 = 44
44 - 2 = 42
42 - 3 = 39
Thus, the number that will replace the question mark is 39.

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