Number Series Ques 159
Question-
What will come in place of the question mark (?)
$\begin{array}{lllllll}5 & 12 & 36 & 123 & ? & 2555 & 15342\end{array}$
(1) 508
(2) 381
(3) 504
(4) 635
(5) None of these
Show Answer
Correct Answer: (1)
Solution: (1)
The pattern of the number series is :
$5 \times 1+1 \times 7=12$
$12 \times 2+2 \times 6=36$
$36 \times 3+3 \times 5=123$
$123 \times 4+4 \times 4=492+16$ $=508$
$508 \times 5+5 \times 3=2540+15$ $=2555$
BETA
