What shall come in place of question mark in figure 3?

The correct answer is Option (3) → 8

In each figure, the top number is the product of the two arm numbers, and each lower number is the square of the arm number on the opposite side.

• Figure 1: \(3\times4=12\); the lower numbers are \(4^2=16\) and \(3^2=9\)

• Figure 2: \(4\times6=24\); the lower numbers are \(6^2=36\) and \(4^2=16\)

• Figure 3: the lower right number \(64=8^2\), so the left arm is 8; and \(8\times3=24\) agrees with the top number