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1. A boat goes downstream at the rate of 9 kmph and upstream at the rate of 6 kmph. Find the speed of current.
(A): 1.5 kmph
(B): 2 kmph
(C): 7.5 kmph
(D): 4.5 kmph
(E): None of these
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By: anil on 05 May 2019 01.22 am
Speed of current = $$frac{1}{2}$$ (downstream - upstream) = $$frac{1}{2} (9 - 6)$$ = $$frac{3}{2} = 1.5$$ kmph
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SBI Clerk 20 July 2014
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