A boat man covers the distance between places (1) In 8hr along the direction of flow (2)In 12hr along the direction opposite to the direction of river .How much time he will take to travel the same distance in still water.
Answers
Answered by
3
X+Y=8
X-Y=12
2X=20
X=10hrs
therefore tike required to cross a river in still water=10hrs
X-Y=12
2X=20
X=10hrs
therefore tike required to cross a river in still water=10hrs
hemantsingh2:
what you let x and y
Similar questions