In a row of 40 children, P is thirteenth from the left end and Q is tenth from the right end. How many children are there between Q and M if M is fourth to the right of P?

13

The correct answer is Option (3) → 13

Let’s place everyone step by step.

• Total children = 40

Position of P

P is 13th from the left.

Position of M

M is 4th to the right of P
So, M’s position from the left = 13 + 4 = 17

Position of Q

Q is 10th from the right
So, Q’s position from the left = 40 - 10 + 1 = 31

Children between M and Q

Positions are:

• M → 17
• Q → 31

Number of children between them:

31 - 17 - 1 = 13