Question

Replace the question mark by choosing the correct alternatives from given.

• A. $42$
• B. $56$
• C. $64$
• D. $70$

Answer 1

Answer: (D)

$70$

In the first figure, $21+16+28+9=74$. So, $\frac{74}{2}-2=37-2=35$ is the middle number.

In second figure, $18+21+63+15=117$. So, $\frac{117}{2}-2=56-2=54$ is the middle number.

Similarly, $37+45+27+36=145$.

Thus $\frac{145}{2}-2=72-2=70$ will be the middle number.

Hence, $70$ replaces question mark.