Question

Rakesh is standing at a point. he walks 20 m towards the east and further 10 m towards the south; then he walks 35 m towards the west; and further 5 m towards the east. what is the straight distance in metres between his starting point and the point where he reached last ? answer choices answer choice 0 5 10 cannot be determined none of these

Answer 1

10 ...east and north mean positive direction
south and west negative direction.
20-10-35+5=-10
derction don't have sign 10…....

Answer 2

The correct option would be none of these

Let the starting point of Rakesh be the origin i.e. (0,0)

Walking 20 m towards east means final position is (20,0)

Then walking 10 m towards south means end position is (20,-10)

Then walking 35 m towards west gives end position as (-15,-10)

Then again walking 5 m towards east gives final position as ( -10, -10 )

Hence, the final direction is south - west

And final distance would be√(-10)² + (-10)² = √200 = 10√2 m