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
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3
Answer:
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Answered by
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.
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