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20 June, 04:26

A plane can fly 540 miles in the same time as it takes a car to go 180miles. If the car travels 120 mph slower than the plane find the speed of the plane

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  1. 20 June, 04:55
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    150 mph

    Explanation:

    Let the rate of the plane be x. Distance traveled by plane=540 miles. Time taken by plane=540/x. Distance traveled by car=180 miles. Rate of car=x-180. Time taken by car=180 / x-120. The time taken by both are same

    540/x=180/x-120

    540 (x-120) = 180

    540x-54000=180x

    540x-180x=54000

    360x=54000

    x=54000/360

    x=150 mph
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