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A boat can row 35 km .upstream in 7 h...

A boat can row 35 km .upstream in 7 hours and the same distance downstream in 5 hours .What is the speed (in km/hr)of the boat in still water ?

A

5

B

7

C

9

D

6

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • A boat covers 63 km upstream in 9 hours and covers the same distance downstream in 7 hours . What is the speed (in km/ hr) of the boat in still water?

    A
    8.7
    B
    8.5
    C
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    D
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  • A boat covers 143 km upstream in 13 hourse and the same distance downstream in 11 hourse. What is the speed (in km /hr ) of the boat in still water ?

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    10
    B
    12
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    14
    D
    8

  • A boat cover row 12 km upstream in 4 hours and can cover the same distance downstream in 3 hours. What is the speed (in km/hr)) of the boat in still water?

    A
    3.5
    B
    3
    C
    2.5
    D
    2

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