railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
If the speed of a boat moving against the current is 18 km/hr, what is the speed of the stream if the boat's speed downstream is 50% greater than its speed upstream ?
1
5.2 kmph
2
4.5 kmph
3
4.8 kmph
4
4.6 kmph