Ask Question
2 October, 15:04

A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water and the speed of the current.

+1
Answers (1)
  1. 2 October, 16:44
    0
    Speed of the boat = u

    speed of the current = v

    in downstream,

    u - v = 105/5

    u - v = 21

    in upstream

    u + v = 105/7

    u + v = 15

    add both equations

    2u = 36

    u = 18

    v = - 3

    so

    speed of the boat = 18 km/h

    speed of the current = 3 km/h
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water and the ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers