A drain, when accidentally left open can empty a big pool 1 hour SLOWER than a water inlet can fill it. If the pool can be filled in 30 hours when the drain is left open, a. how long can the water inlet fill the big pool when the drain is closed? b. how long can the drain empty the pool when it is left open?
A drain, when accidentally left open can empty a big pool 1 hour SLOWER than a water inlet can fill it. If the pool can be filled in 30 hours when the drain is left open, a. how long can the water inlet fill the big pool when the drain is closed? b. how long can the drain empty the pool when it is left open?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter9: Systems Of Linear Equations
Section9.7: Puzzle Problems
Problem 3OE
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