Question

A car covers a certain distance in 40 minutes if it runs at 54km/hr. how much time will it take to cover the same distance at 45km/hr​

Answer 1

Answer:

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Answer 2

Answer:

1 hour 15 minutes.

Step-by-step explanation:

1 minute = 1/60 hours.

40 minutes = 40/60 = 2/3 hours.

In first case,

speed = 54 km/ h

time = 2/3 hours.

distance covered = speed x Time

= 54 x 2/3 = 36 km.

In Second Case,

speed = 45km/h

distance = 36 km

time taken = Distance /Speed

= 45/36 hours

= 5/4 hours.

1 hour = 60 minutes

5/4 hours = 60 x 5/4 = 75 minutes

75 minutes = 1 hour 15 minutes

time taken by car = 1 hour 15 minutes.