engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A boat can travel 820 km downstream in 20 hours. The speed of the boat in still water is 5 km/hour more than the speed of the stream. Find the time the boat will take to travel 250 km upstream.
1
55
2
45
3
50
4
60