engineering recuitment NFC Chemical Plant Operator Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
Sanjay Sharma can swim downstream 50 km in 2 hrs 30 minutes and upstream 56 km in 3 hrs 30 minutes. Then, what is the ratio of his speed in still water to the speed of the current?
1
8 : 1
2
7 : 1
3
9 : 1
4
6 : 1