Join ExamsbookAnswer : 3. "4 hours"
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.5
Q: A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
- 13 hoursfalse
- 25 hoursfalse
- 34 hourstrue
- 48 hoursfalse
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Answer : 3. "4 hours"
Explanation :
x=13 km/hr, y=4 km/hr
x+y=17 km/hr
Total Distance=68 km
Total Time=68/17=4 hours