Number Series Ques 46
Question-
What will come in place of the question mark (?)
$2 \begin{array}{lllll}3 & 7 & 29 & ? & 3729\end{array}$
(1) 233
(2) 225
(3) 227
(4) 331
(5) 191
(IBPS Bank PO/MT CWE (Pre.), 16.10.2016 (First Sitting))
Show Answer
Correct Answer: (1)
Solution: (1)
The pattern is :
$2 \times 1+1=3$
$3 \times 2+1=6+1=7$
$7 \times 2^{2}+1=28+1=29$
$29 \times 2^{3}+1=232+1=233$
$233 \times 2^{4}+1=3728+1=3729$