Question

Find the missing number in the following question.

• A. $0$
• B. $2$
• C. $11$
• D. $12$

Answer 1

The correct option is C $11$

The number inside the circle is equal to the difference between the sum of the numbers at the extremities of the horizontal diameter and the sum of numbers at the extremities of the vertical diameter.
In fig. (A), $(5+6)-(7+4)=0$
In fig. (B), $(7+6)-(8+4)=1$.
$\therefore$ In fig, (C) missing number $=(11+2)-(0+2)=11$