Question
Before servicing, a car runs at a speed of 50 km/hr
while after servicing, it runs at a speed of 60 km/h. After servicing the car covers a certain distance in 10 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 = 60 × 10 = 600 km Required time taken = 600/50 = 12 hours
Identify the number, which when added to itself 14 times gives 540.
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