Question

A car cover the distance between 2 cities in 6 hours . A van covers the same distance in 5.5 hours by travelling 4km\hr faster than the car. What is the distance between the two cities? Find the speed of the car and van

Answer 1

Answer:

Step-by-step explanation:

Letx consider, x= total distance covered by the car,

Time taken to complete the half distance with velocity v=40km/h,

t

1

=

2×40

x

=

80

x

hr. . . . .(1)

The time taken to complete another half distance with velocity u=60km/h

t

2

=

2×60

x

=

120

x

hr

The total time taken, t=t

1

+t

2

t=

80

x

+

120

x

=

48

x

hr

The average speed of the car,

v

avg

=

x/48

x

=48km/h