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In the following question, select the missing number from the given series.
13, 27, 56, 115, ?
The pattern followed is :
13 $$\times2+1$$ = 27
27 $$\times2+2$$ = 56
56 $$\times2+3$$ = 115
115 $$\times2+4$$ = 234
=> Ans - (D)
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