Answer to Question #204743 in English for Clarah Maureen

Question

Use the four-step problem-solving process described on page 55(2014)/58 (2016)to solve the following problem :A car travelling at an average speed of 100kn/h covers a certain distance in 3 hours. At what average speed must the car travel to cover the same distance in 2 hours

Answer 1

Given: Distance = speed * time

If the car's average speed is 100 km/h, in 3 hours distance will be:

100 * 3 = 300 km

To cover 300 km in 2 hours, the required average speed, given speed = Distance/Time:

300/2 = 150 km/h

The car must travel at an average speed of 150 km/h to cover that distance in 2 hours.