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Speed of a speed-boat when moving in the...

Speed of a speed-boat when moving in the direction parallel to the direction of the current is 16 km/hr. Speed of the current is 3 km/hr. So the speed of the boat against the current will be (in km/hr)

A

22

B

9.5

C

10

D

None of these

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The correct Answer is:
D
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