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What should come in place of the question mark (?) in the given series? 61 66 72 77 83 ?
Question

What should come in place of the question mark (?) in the given series?
61 66 72 77 83 ?

A.

87

B.

88

C.

89

D.

90

Correct option is B

Information Given:
Series: 61, 66, 72, 77, 83, ?
Logic: Differences follow pattern: +5, +6, +5, +6, ...
Step-by-step:
66 − 61 = 5
72 − 66 = 6
77 − 72 = 5
83 − 77 = 6
Next difference = 5
83 + 5 = 88
Final Answer:
88
Final Correct Option:
(B)

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