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Select the number that will come next in the following series. 170, 197, 226, ..
Question

Select the number that will come next in the following series.
170, 197, 226, ..

A.

370

B.

257

C.

287

D.

320

Correct option is B

Given:
170, 197, 226, ..
Logic: +27, 29, .....
197 - 170 = 27
226 - 197 = 29
The differences are increasing by 2 each time.
So, following this pattern, the next difference should be:
29 + 2 = 31
Adding 31 to the last term in the series (226)
226 + 31
= 257 next in the following series

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