1.
What should come in place of question mark (?) in the following number series ?55, 109, ?, 433, 865, 1729
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By: anil on 05 May 2019 01.24 am
Here, the nth term is obtained by general formula, nth term = Previous term *2 - 1
We have to find third term, third term = 109*2 - 1 = 218 - 1 = 217
Hence, option C is correct.
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We have to find third term, third term = 109*2 - 1 = 218 - 1 = 217
Hence, option C is correct.