SSC Delhi Police Head Constable (Ministerial) 2025 Mock Test (New) Quantitative Aptitude Speed Time and Distance Boat and River
A boat goes 20 km downstream in 30 mins. The speed of the stream is 10 km/h. Find the speed of the boat.
1
45 km/h
2
20 km/h
3
60 km/h
4
30 km/h