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?

A scooter runs at a speed of 49 km/hr after repairing and runs at 42 k

1.	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?
A.	8 hours 10 mins
B.	12 hours 20 mins
C.	16 hours 20 mins
D.	18 hours 30 mins
Answer» D. 18 hours 30 mins

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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?

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