Question

Twice the speed downstream is equal to the thrice the speed upstream, the ratio of speed in still water to the speed of the current is:

Answer 1

Let the speed in still water be x km
Speed of current is y km/hr

Speed downstream = (x + y) km/hr
Speed upstream = (x - y) km/hr

2 (x+y) = 3 (x-y)
x = 5y
or x ÷ y = 5 ÷ 1
Thus the ratio is 5 : 1

Therefore the ratio of speed in still water to the speed of the current is 
5 : 1.

Answer 2

Answer:

the answer is 5:1.

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