Math, asked by jyotsnagonsalves35, 4 months ago

17. In one hour a motorboat goes 12 km
along the stream and 6 km against the
stream. What is the speed of the boat in
still water ?
(1)8 km/hour
(2) 10 km/hour
(3)9 km/hour
(4) 12 km/hour​

Answers

Answered by Anonymous
5

Speed In still water=Average of speed in upstream and speed in downstream

=1/2(12+6)=9kmph

Answered by ranjanasingha1980
1

Answer:

9 km/hour

Step-by-step explanation:

1/2(12+6)kmph=9kmph

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