SOLUTION: Full tank with 3 one inch holes drains in 7.2 hours. Same size tank full has 7 one inch holes, how long will it take to drain?

Question 623439: Full tank with 3 one inch holes drains in 7.2 hours. Same size tank full has 7 one inch holes, how long will it take to drain?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Full tank with 3 one inch holes drains in 7.2 hours.
Same size tank full has 7 one inch holes, how long will it take to drain?
:
Let t = time to drain with 7 holes
:
Inverse variation equation (the greater the number holes, the less time)
=
Cross multiply
7t = 3 * 7.2
7t = 21.6
t =
t = 3.1 hrs
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