SOLUTION: If a boat is traveling downstream to a destination and it takes 40 minutes in a 3 mph current. Traveling the same distance going upstream with 3mph current it takes 60 minutes. How

Question 570609: If a boat is traveling downstream to a destination and it takes 40 minutes in a 3 mph current. Traveling the same distance going upstream with 3mph current it takes 60 minutes. How fast would the boat be traveling in still water?

I'm not even sure how to go about this but I think going downhill the boat is going 13.3mph and uphill the boat is having to go 20mph?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Boat speed =x mph
current speed 3 mph

time with current 0.67 hours
time against current 1 hours
0.67(x+3)=1(x-3)
0.67x+ 2.00 =1x-3
1 x -0.67 x = 2 + 3
0.33 x = 5
x = 15 mph Boat speed

RELATED QUESTIONS
A motorboat travels 40 miles downstream (traveling with the current) in 2 and 1/2 hours.... (answered by mananth)

The current of a river moves at 3 miles per hour. It takes a boat a total of 3 hours to... (answered by Murthy)

A ferry boat takes people up and down the river 40 miles between two towns. The boat... (answered by ankor@dixie-net.com)

1. The speed of a boat in still water is 10 mph. If it travels on a river 6 miles... (answered by Theo)

A motorboat can travel 20 mph in still water. If the boat can travel 3 miles downstream... (answered by mananth)

The speed of a current is 6 mph. If a boat travels 52 miles downstream in the same time... (answered by josmiceli)

If a boat in a 4 mph current can travel 76 miles downstream in the same time it takes to... (answered by ewatrrr)

The speed of a river current is 4 mph. If a boat travels 30 miles downstream in the same... (answered by TimothyLamb)

The speed of a river current is 4 mph. If a boat travels 20 miles downstream in the same... (answered by Boreal)