28.
A man can row a boat at 10 kmph in still water. If the speed of the stream is 6
kmph, the time taken to row a distance of 80 km down thestream is : . [Central
Excise ]
8
hours 10 hours
5
hours 20 hours
Answer: 5 hours
Explanation: Speed downstream (10+6) km/hr 16
km/hr.
Time
taken to cover 80 km downstream = (80/16) hrs = 5 hrs.
