Question

A car travels 60 km in 1 hr 30 min How long will it take to cover a distance of100km at the same speed.
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Answer 1

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Your answer:

The car covers 60 km in 90 minutes or its speed = 60 km*60/90 min = 40 km/hr .

The car covers 60 km in 90 minutes or its speed = 60 km*60/90 min = 40 km/hr .So to cover 100 km at the same speed it will take 100/40 = 2.5 hours or 2 hours and 30 minutes.

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Answer 2

v=60/90km/min

v=60/90*60

=120/30

=40km/h

Distance=40*90/60

60km