Question

Which number should replace the question mark?
$3,5,9,15,23,33,45,?$

• A. $49$
• B. $50$
• C. $59$
• D. $52$

Answer 1

The correct option is C $59$

The difference of successive terms are $2,4,6,8,10,12$, respectively.

Then the next term in the difference series will be $14$.

$\therefore$ The next term will be $45+14=59$