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I went to Delhi @ speed of 200km/hr but ...

I went to Delhi @ speed of 200km/hr but suddenly I returned to the same place @ speed og 600km/hr.What is my average speed:

A

300 km/hr

B

400 km/hr

C

366.66 km/hr

D

none of these

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • I went to Delhi at a speed of 200 km/hr but suddenly I returned to the same place at a speed of 600 km/hr. What is my average speed :

    A
    300 km/hr
    B
    400 km/hr
    C
    366.66 km/hr
    D
    none of these

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    A
    6.5
    B
    6.8
    C
    6.67
    D
    8

  • A person went from A to B at an average speed of x km/hr and returned from B to A at an average speed of y km/hr. What was his average speed during the total journey?

    A
    `(x+y)/(2xy)`
    B
    `(2xy)/(x+y)`
    C
    `(2)/(x+y)`
    D
    `(1)/(x) + (1)/(y)`

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