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A scooter runs at a speed of 49 km/hr after repairing and runs at 42 km/hr before repairing. It covers a certain distance in 7 hours after repairing. How much time will it take to cover twice of the distance before repairing?
8 hours 10 mins
12 hours 20 mins
16 hours 20 mins
18 hours 30 mins
After repairing speed= 49,
Time= 7 hrs
Distance= speed* time
=49*7
= 343 km
Now distance becomes twice and speed= 42
Time= distance/speed
=686/42
= 49/3 = 16 and 1/3 hrs
= 16hrs and 20 min
By: Parvesh Mehta ProfileResourcesReport error
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