At a speed of 60 km / h, the car traveled a certain distance in 3/4 hours.

At a speed of 60 km / h, the car traveled a certain distance in 3/4 hours. How fast does a car have to go to cover the same distance in 1/4 hour?

1) Determine how far the car has traveled at a specified speed in a given time.

We multiply 60 km / h by 3/4 hours.

Will be:

60 * 3/4 = 180/4 = 45 km.

2) We find the speed at which the car must go in order to travel the given path in 1/4 of an hour.

We divide the resulting distance by time.

45 / 1/4 = 45 * 4/1 = 180 km / h.

Answer:

He must travel at a speed of 180 km / h.

Method 2.

We find the relation of time.

3/4 / 1/4 = 3/4 * 4/1 = 3 times.

This means the speed will be 3 times higher.

60 * 3 = 180 km / h.