a car cover's a distance of 240km with some speed if speed is increased by 20 km/hr it will cover the same distance in 2hr less find the usual speed of the car
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heyyy mate don't know....
Answered by
8
Answer:
Step-by-step explanation:
Let the speed of car be: x
Therefore, increased speed = x+20
By the formula,
Speed= distance/time
Therefore,Time = Distance/speed
(ACCORDING TO GIVEN CONDITION)
240/x - 240/x+20 = 2
By solving this equation you will get the speed of car : 40km/hr
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