Time taken by a boat to go 360 m. upstream is 20% more than that taken to come back. If the speed of a boat in still water is 20 m/s more than that of a stream, then find the total time taken by boat to go 360 m upstream and come back?
1
30 sec.
2
32 sec.
3
33 sec.
4
34 sec.
5
35 sec.