Question

a car covers 140 km distance with speed of 6 km/hr and the remaining distance with speed of 10km/hr. if it's reverses it's speed , it covers 8 km more in the same time. find the time taken by the car to cover 140 km and average speed of car.​

Answer 1

Answer:

it takes the time o 10 hours

Answer 2

speed= distance/ time

16 = 140/x

16x= 140

x= 140/16

x=35/4

average speed= 6+10/2

x = 8 km/ hr