Question
Before servicing, a car runs at a speed of 20 km/hr
while after servicing, it runs at a speed of 40 km/h. After servicing the car covers a certain distance in 6 hours. How much time would the car have taken to cover the same distance when it was not serviced?Solution
After servicing, Distance covered by the car = 40 × 6 = 240 km Required time taken = 240/20 = 12 hours
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