defence exam CRPF ASI Technical Mock Test 2023 Quantitative Aptitude Speed Time and Distance Boat and River
To go a distance of 144 km upstream, a rower takes 12 hours while it takes her only 9 hours to row the same distance downstream. The speed of the stream is ______.
1
2 km/h
2
3 km/h
3
1.5 km/h
4
1 km/h