Join ExamsbookAnswer : 4. "3.6 km"
The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance traveled downstream in 12 minutes is :5
Q: The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance traveled downstream in 12 minutes is :
- 12.1 kmfalse
- 21.8 kmfalse
- 34.2 kmfalse
- 43.6 kmtrue
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Answer : 4. "3.6 km"
Explanation :
x=15 km/hr
y=3 km/hr
Downstream speed =x+y=18 km/hr
so D=speed✖Time=18✖12/60=3.6 km