engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Quantitative Aptitude Speed Time and Distance Boat and River
A boat can travel at a speed of 13 km/h in still water. If the speed of the stream is 4 km/h, then the time taken by boat to go 63 km in the opposite direction to stream is:
1
6 hours
2
5 hours
3
9 hours
4
7 hours