Question

A car travels 120 km in 2 hours 30 minutes.
How much time will it require to cover 40 km with the same speed?

Answer 1

Step-by-step explanation:

Answer 2

Given info : A car travels 120 km in 2 hours 30 minutes.

To find : Time required to covered 40 km with the same speed is...

solution : a/c to question,

The car travels 120 km in 2 hours 30 minutes.

distance covered = 120 km

time taken = 2 hours 30 minutes = 2 hours + 30/60 hours

= 2 + 1/2 = 2.5 hrs

[ ∵ 1 hour = 60 minutes so 30 minutes = 30/60 hr ]

now speed = distance covered/time taken

= 120 km/2.5 hrs

= 48 km/hr

therefore the speed of car is 48 km/hr

now time taken to cover 40 km with speed of 48 km/h = distance/speed = (40 km)/(48 km/hr)

= 5/6 hr

= 5/6 × 60 minutes [ ∵ 1 hr = 60 minutes ]

= 50 minutes

Therefore time required to cover 40 km with same speed is 50 minutes.