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What should come in place of the question mark (?) in the given series? 310, 311, 301, 303, 293, 296, 286, ?
Question

What should come in place of the question mark (?) in the given series?
310, 311, 301, 303, 293, 296, 286, ?

A.

289

B.

288

C.

290

D.

276

Correct option is C

Given Series:
310, 311, 301, 303, 293, 296, 286, ?
Logic:  Alternating between increasing numbers (+1, +2, +3, ...) And decreasing by 10 every time.
310 +1 → 311 
311 -10 → 301 
301 +2 → 303 
303 -10 → 293 
293 +3 → 296  
296 -10 → 286  
so the next increment should be +4
So, 286 + 4 = 290
Thus, the correct option is (c) 290.

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