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Multiple Choice Questions

Ashok can row upstream at 8kmph and downstream at 12kmph What is the speed of the stream ........

Quantitative Aptitude (CHSL) Boats and Streams

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Ashok can row upstream at 8kmph and downstream at 12kmph.What is the speed of the stream ?

6km/hr

3km/h

2km/hr

4km/hr

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Explanation:

If the speed downstream is a kmph and the speed upstream is b kmph
then
Speed of the stream = ½ (a-b) kmph
Explanation:
Speed downstream a = 12kmph
Speed upstream b = 8 kmph
Speed of the stream = ½ (a-b) = ½ (12-8)
= 4/2 = 2 kmph
speed of the stream = 2kmph

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