Each of the following questions has a different figures with Question mark/s. Replace the question mark/s by choosing the correct response from amongst the alternatives given.

Options

A. 6
B. 4
C. 3
D. 9

Answer

D

Explanation

The pattern is as follows:

`( Rxx T)-(P xx T)=Q,(Rxx T) + (P xx T) = S` .
In the first figure, `(3 xx 5) - (1 xx 5) = 10, (3 xx 5) + (1 xx 5) = 20`
Let the missing number be x. Then, in the second figure, `(4 xx x) - (2 xx x)= 18, (4 xx x) + (2 xx x) = 54` .
On solving we get., x = 9
Therefore, Missing number = 9