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A car covers a distance in 40 minutes wi...

A car covers a distance in 40 minutes with an average speed of 60 km per hour. The average speed to cover the same distance in 30 minutes is

A

80 km//h

B

`45/2//h`

C

70km//h

D

45km//h

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A man covers a certain distance in 40 minutes at a speed of 45 kmph. If he wants to cover the distance in 30 minutes, how much speed will be increase ?

    A
    10 km/hr
    B
    12 km/hr
    C
    15 km/hr
    D
    25 km/hr

  • A car driver travels from the planes to a hill station . Which are 200 km apart at an average speed of 40 km/h . In the return trip he covers the same distance at an average speed of 20 km/h . The average speed of the car over the entire distance of 400 km is

    A
    16.56 km/h
    B
    17.89 km/h.
    C
    26.67 km/h.
    D
    35 km/h.

  • A car driver travels from the plains to a hill station, which are 200 km apart at an average speed of 40 km/h. In the return trip he covers the same distance at an average speed of 20 km/h. The average speed of the car over the entire distance of 400 km is

    A
    16.56 km/h
    B
    17.89 km/h
    C
    26.67 km/h
    D
    35 km/h

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