I start from my home and go 2 km straight. Then, I turn towards my right and go 1 km. I turn again towards my right and go 1 km again. If I am north-west from my house, then in which direction did I go in the beginning?

Options

A. North
B. South
C. East
D. West

Answer

D

Explanation

The journey of the person is as shown in Fig. i.e. P to Q, Q to R and R to S.

P = Starting Point, T = End Point
Also, it is given that the person is finally to the north-west of his house.
So, we have to rotate Fig. (i) `90^(@)` anticlockwise to satisfy the specified conditions.

Therefore, from Fig. (ii) it is clear that the direction of walking in the beginning was West.