Question

a car moves towards east at a speed of 40km/h in same time another car moves from same time and same point at a speed of 45km/h at west sides. the distance between two car is 510km. what its time taken

Answer 1

Hey.

Here is the answer.

Let the time taken be t

So, distance travelled by car with speed 40km/h

= 40t km towards East

and distance travelled by car with 45km/h

= 45t West

As both are in opposite direction so the distance will be added

As, 40t + 45t = 510

or, 85t = 510

or, t = 510/85 = 6h


So time taken is 6 hours.

Thanks.