+0  
 
0
61
2
avatar

A boat moves at a rate of 14mph in still water. If the river's current flows at a rate of 5 mph, how long does it take the boat to travel 35 miles upstream?

Guest Oct 8, 2018
 #1
avatar
0

The speed of the boat upstream =14 - 5 =9 mph
Distance =Speed x Time
35 =9 x T
T =35 / 9
T =3 8/9 - hours - or about 3 hours and 53 1/3 minutes.

Guest Oct 8, 2018
 #2
avatar+3423 
+2

Yes, when it goes upstream you have to subtract, but, if it is heading downstream, then you have to add!

tertre  Oct 8, 2018

36 Online Users

avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.