Question

Select the correct alternative to replace the '?'
$371531:5112347::7153163:?$

• A. $9214181$
• B. $133163127$
• C. $132961125$
• D. $9193979$

Answer 1

Answer: (A)

$9214181$

First pair of the series follow a sequence :

$3+2=5$, $7+4=11$, $15+8=23$, $31+16=47$.

In the same way,

$7+2=9$, $15+4=19$, $31+8=39$, $63+16=79$.

Thus, the second term of the series will be $9193979$.

Hence, option D is correct.