A) 3 : 1
B) 1 : 3
C) 1 : 2
D) 2 : 1
Correct Answer: D
Solution :
Speed of boat = x m/sec Speed of stream = y m/sec Then, \[\frac{\text{Distance}\,\,\text{travelled}}{x+y}=\frac{1}{3}\left( \frac{\text{Distance}\,\,\text{travelled}}{x-y} \right)\] \[\Rightarrow \] \[x=2y\therefore x:y=2:1\]You need to login to perform this action.
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