A ship sails 25 km of a river towards downstream in 5 hours. If the speed of boat is 1.5 times the speed of current, then find the time taken by ship to cover the same distance upstream.
1
25 hours
2
30 hours
3
21 hours
4
24 hours
A ship sails 25 km of a river towards downstream in 5 hours. If the speed of boat is 1.5 times the speed of current, then find the time taken by ship to cover the same distance upstream.