Question

moving at the rate of 70km/hr, a car completes a journey in 18 minutes how long would it take to complete this journey if the speed is increased to 84 km/hr​

Answer 1

Answer:

15min

Step-by-step explanation:

In 60 min the car moves 70km

so, in 18 min it moves-70/60×18km=21 km

So, to complete 84 km it takes -60 min

so, to complete 21 km it takes-60/84×21min=15mim

Answer 2

Answer:

distance = .70x18/6 o=21km.

time taken=(21/84)x 6=15min.