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Which of the following numbers will replace the question mark (?) in the given series?28, 42, 59, 81, 110, ? ,197
Question

Which of the following numbers will replace the question mark (?) in the given series?
28, 42, 59, 81, 110, ? ,197

A.

148

B.

153

C.

163

D.

150

Correct option is A

Given: 28, 42, 59, 81, 110, ? 197
Logic: First difference +14, +17, +22, +29, +38, +49 pattern follows
(Double difference is 3, 5, 7, 9, 11,....)
28+14=42
42+17(14+3)=59
59+22(17+5)=81
81+29(22+7)=110
110+38(29+9)=148
148+49(38+11)=197
So, missing number = 148
Thus, correct option is (a).

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