A car travels 90km in 2 hours 3 minutes.How much time is required to cover 210km? (unitary)
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Answer:
We know Speed = distance/time
First we have to find out the speed of car
Distance = 90 km
Time = 2 and a half hour = 2.5 hours
Speed of car = 90/2.5 = 36 km /hr
Now new distance = 30 km
Speed = 36 km/hr
Time = to find out
Time = distance /speed
Time = 30 km/36 km per hour
Time = 5/6 hour
Time = 5/6 × 60 minutes
Time = 50 minutes
The car will take time of 5/6 hour or 50 minutes to cover 30km
Answer :The car will take time of 5/6 hour or 50 minutes to cover 30 km
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