SOLUTION: A water tank can be filled in 5 minutes and emptied in 7 minutes. If the drain is accidently left open when the tank is being filled, how long does it take to fill the tank? A. 17

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A water tank can be filled in 5 minutes and emptied in 7 minutes. If the drain is accidently left open when the tank is being filled, how long does it take to fill the tank? A. 17      Log On


   

Question 22889: A water tank can be filled in 5 minutes and emptied in 7 minutes. If the drain is accidently left open when the tank is being filled, how long does it take to fill the tank?
A. 17.5 min
B. 24 Min
C. 10 min
D. 2 min
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F5-1%2F7
7%2F35-5%2F35
2%2F35
35%2F2
17.5
Hence, it would take 17.5 minutes to fill the tank.