insurence exam ESIC UDC Mock Test Series Quantitative Aptitude Speed Time and Distance Boat and River
Ravi and Shyam went to a race in a river. The ratio of speed of the stream and the speed of Ravi's boat in still water is 7 ∶ 3. The ratio of speed of the stream and the speed of Shyam's boat in still water is 5 ∶ 9. Find the ratio of speed of Ravi's boat to the Shyam's boat.
1
7 ∶ 18
2
5 ∶ 23
3
3 ∶ 23
4
5 ∶ 21
5
None of these