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Which of the following numbers will replace the question mark (?) in the given series? 165, 192, 227, 270, 321, ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
165, 192, 227, 270, 321, ?

A.

347

B.

361

C.

380

D.

392

Correct option is C

Given: 165, 192, 227, 270, 321, ?
Logic: Double difference of the series is +8
192−165 =27
227−192 =35
270−227 =43
321−270 =51
next difference will be = 51 + 8 = 59
321+ 59 =380
Thus, correct option is (c).
Alternate method:

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