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What should come in place of the question mark (?) in the given series?356, 333, 300, ?, 204, 141
Question

What should come in place of the question mark (?) in the given series?
356, 333, 300, ?, 204, 141

A.

237

B.

247

C.

257

D.

227

Correct option is C

Given: 356, 333, 300, ?, 204, 141
Logic: Double difference is + 10 place.
356 - 333 = 23
333 - 300 = 33
300 - ? = ?
? - 204 = ?
204 - 141 = 63
The differences are increasing:
23 → 33 → ? → ? → 63
Let's assume the pattern continues with a +10 increment in differences:
23 + 10 = 33,  30 + 10 =  43,  43 + 10 = 53, 53 + 10 = 63
Now apply this difference pattern to the terms:
356 - 23 = 333
333 - 33 = 300
300 - 43 = 257
257 - 53 = 204
204 - 63 = 141
So, the missing term is 257.
Thus, correct option is (c).

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