| A boatman takes twice as long to row a distance against the stream as to row the same distance with the stream. Find the ratio of speeds of the boat in still water and the stream. |
A) 2 : 1
B) 8 : 1
C) 1 : 2
D) 1 : 3
E) None of these
Correct Answer: B
Solution :
| Let boatman's speed upstream x |
| and his speed downstream \[=2x\] |
| \[\therefore \]Ratio = (Speed in still water): (Speed of stream) |
| \[=\left( \frac{2x+x}{2} \right):\left( \frac{2x-x}{2} \right)=\frac{3x}{2}:\frac{x}{2}=3:1\] |
You need to login to perform this action.
You will be redirected in
3 sec
