a car travels a distance of 715km at a uniform speed. if the speed of car is 10 km/HR more ,it takes 2 hr less to cover the same distance. find the original speed of the car using. variation method
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Answer:
715/x-715/x+10=2
Step-by-step explanation:
(715x+7150-715x)/x^2 + 10x = 2
x = 55
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