railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A man can row 30 km upstream and 48 km downstream in total 9 hour, while 72 km downstream and 15 km upstream in total 6 hours. In how much time (in hours) will it cover a distance of 112 km in downstream.
1
3.5 hours
2
7.3 hours
3
6 hours
4
5 hours