Question

7. A bus takes 48 minutes to cover a certain distance when travelling at a speed of
50 km/h. How much time will it take to cover the same distance when traveling at a speed of 30km/hr?​

Answer 1

Answer:

80min

Step-by-step explanation:

speed =50 km/hr

=50/60km/min

=5/6km/min

Time taken by the bus to cover distance

=48min

Distance =speed*time

48*5/6

=40km

therefore the time it will take to cover 40km

at 30km/hr=distance / speed

40/30=4/3

4/3*60=4*20

=80 min.

Answer 2

Answer:

Given, Speed =50 km/hr =50/60=5/6 km/min

Time taken by bus to cover distance =48 min

Distance=speed×time=48×

6

5

=40 km

∴ Time it will take to cover 40 km at 30 km/h

= distance / speed =40/30 =

3

4

hrs=4×20 min

= 80 minutes