Which number is missing from this?

Question

A. 5

B. 6

C. 14

D. 49

Answer: D. 49

Solution:

Logic::

Square the values in the segments on the left half, and put the results in the opposite segment on the right.

3² => 9

4² => 16

7² => 49

Hence, the answer is 49.

Read more:

What number should logically replace the question mark?	In the following question, if one term in the number series is wrong, find out the wrong term. 1, 3, 12, 25, 48
What number should logically replace the question mark?	Which of the following is a common factor of both x^2 – 4x – 5 and x^2 – 6x – 7?