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11 June, 03:57

a jeep finishes a journey in 9 hours at a speed of 60 km her hour. by how much speed should its speed be increased do that it may only take 6 hours to finish the journey?

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Answers (2)
  1. 11 June, 04:43
    0
    90 km / hour.

    Step-by-step explanation:

    Speed = distance / time

    So Distance = speed * time.

    The distance is the same in both scenarios so

    60 * 9 = s * 6 where s is the required speed.

    540 = 6s

    s = 540 / 6

    s = 90 km / hour.
  2. 11 June, 07:04
    0
    90 km/h

    Step-by-step explanation:

    If the jeep finished the journey in 9 hours and 60 km/h, then we know that the journey is 9 * 60 kilometers long, or 540 kilometers.

    540 kilometers / 6 hours = 90 km/h
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