Teaching DSSSB PRT Special Educator Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
The speed of a boat downstream is 2.5 times the speed of the boat upstream. If the time taken by the boat for going 30 km downstream and the same distance upstream is 7 hours, then what is the speed (in km/h) of the boat downstream?
1
12.5
2
9
3
15
4
7.5