state gov Kolkata Police SI Mock Test 2023 Quantitative Aptitude Speed Time and Distance Boat and River
A boat travels 60 km downstream in 2\(\frac{1}{2}\) hours and returns the same distance in 3\(\frac{3}{4}\) hours. What is the speed of the boat in still water?
1
25 km/h
2
15 km/h
3
20 km/h
4
10 km/h