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Quantitative Aptitude

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Time & Distance

Question
20 out of 35
 

A boat travel 18 km towards upstream in 6 hours. How long (In Hrs) will it take to cover the same distance downstream I the speed of current is one fourth the speed of boat in still water.



A 3
B 4
C 3.6
D 3.4
E None of these

Ans. C

B – S = = 3 km/h

Again = B = 4S

B – S = 3 = 3S

Or, S = 1 km/hr and B = 4 km/h

B + S = 5 km/h

time during downstream = 18/5 = 3.6

Time & Distance Flashcard List

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