Starting from a point P, Sarita walked 20 metres towards South. She turned left and walked 30 metres. She then turned left and walked 20 metres. She again turned left and walked 40 metres and reached a point Q. How far and in which direction is the point Q from the point P?

Options

A. 20 metres West
B. 10 metres North
C. 10 metres East
D. 10 metres West

Answer

D

Explanation

The movements of Sarita are as shown in Fig.
i.e. P to X, X to Y, Y to Z and Z to Q.

P = Starting Point
Q = End Point
So, required distance of Q from P
PQ = (ZQ- PZ) = (ZQ - XY) = (40 - 30) m = 10 m
Clearly, Q is to the West of P.
Therefore, Q is 10 m West of P.