SOLUTION: Rob is planning a three hour trip down the Allenem River and back to his starting point. He knows that he can paddle in still water at 3 miles per hour and that the rate of the cu

Question 366331: Rob is planning a three hour trip down the Allenem River and back to his starting point. He knows that he can paddle in still water at 3 miles per hour and that the rate of the current is 2 miles per hour. How much time can he spend going downstream? How far dwonstream can he travel?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let x be the distance he can travel to complete trip in 3 hours
downstream speed = 3+2 = 5mph
upstream speed = 3-2 = 1mph
time downstream + time upstream = 3 hours
x/5 + x = 3
6x/5 =3
6x=15
x= 2.5 miles.
..
speed downstream = 5 mph
distance = 2.5 miles
time downstream = 5/2.5 = 2 hours
...
m.ananth@hotmail.ca
RELATED QUESTIONS
Len is planning a 3 hour trip down the Allenem River and back to his starting point. He... (answered by ankor@dixie-net.com)

Len is planning a three hour trip down a river and back to his starting point. He knows... (answered by josmiceli)

Liam is planning a three hour trip down the East River and back to his starting point. He (answered by mananth,richwmiller)

Kyle is planning a 3 hour trip down a river and back to his starting point. He knows he... (answered by macston)

mario paddled his caneo upstream for 3 hours. when he turned around and paddled back to... (answered by stanbon)

Al travels in his motorboat downstream 12 miles with the current. He then turns around... (answered by ikleyn)

Alvin can go upstream at a rate of 20 miles per hour and downstream at a rate of 30 miles (answered by lwsshak3)

Jasper is planning a trip the length of the river he plans to navigate is 7.2 miles. At... (answered by Alan3354)

Dave takes a group of teenagers on a canoe trip on the Wolf River. He discovers that it... (answered by ankor@dixie-net.com)