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1. What will come at the place of question mark ?
6, 13, 28, 59, ?, 249.

Solution:

First term → 6
Second term → (6*2+1) = 13
Third term → (13*2+2) = 28
Fourth term → (28*2+3) = 59
Fifth term → (59*2+4) = 122
Sixth term → (122*2+5) = 249
So, the required term = 122.

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