state gov DSSSB Warder, Assistant Superintendent, Matron Mock Test 2024 Quantitative Aptitude Speed Time and Distance Boat and River
Sudha can travel a certain distance downstream in 6 hours by boat and return to the starting point in 9 hours. If the stream flows at a speed of 3 km/h, how long (in hours) will it take to cover a distance of 67.5 km in still water?
1
5.5
2
5
3
4.5
4
4