Ask Question
12 January, 12:53

A motorboat takes

3

hours to travel

108mi

going upstream. The return trip takes

2

hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

+4
Answers (1)
  1. 12 January, 14:43
    0
    108=3 (b-s)

    36=b-s

    s=b-36

    ...

    108=2 (b+s), and using s found above gives us:

    54=b+b-36

    54=2b-36

    2b=90

    b=45, and since s=b-36, s=9

    So the boat's speed is 45mph and the stream's speed is 9mph
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A motorboat takes 3 hours to travel 108mi going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers