Question

It takes a boat going upstream 3 hours to cover the same distance, as it would cover in 2 hours going downstream. What is the speed of the boat if the speed of the current is 3 kilometers per hour?

Answer 1

15 km per hour

Explanation:

Speed going Upstream: s-3

Speed going Downstream: s+3

they have equal distance

d=speed•time

3(s-3)=2(s+3)

solve the equation ^

3s-9=2s+6

s=15