Question

7. A car takes 7 hours to cover a certain distance at the speed of 48 km/h. If the speed is decreased by
20 km/h, how much time will it take to cover the same distance?
12 do Ifher 6 hours daily, in how many days​

Answer 1

Answer:

Let Distance covered =x km.

x=48×7km.

Now

Speed = 48−20=28km/h

Time=

Speed

Distance

=

28

48×7

=12hours

Answer 2

Answer:

Let distance cover = x km

x = 48 × 7 km

Now,

speed = 48 - 20 = 28km/h

Time = Distance × speed

= 28

48 × 7

=12 hour