railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A boat goes 2 km upstream and 3 km downstream in 45 minutes while it goes 3 km upstream and 9 km downstream in 90 minutes. What is the speed (in km/hr) of boat when going down stream?
1
9
2
10.5
3
12
4
9.5