1003197407

SubArea: 
Linear equations and inequalities
Level: 
C
Project ID: 
1003197407
Accepted: 
1
Clonable: 
0
Easy: 
0
A hose can fill the garden pool in 20 hours. The owners bought a pump that guarantees filling the pool in 8 hours. However, a crack appeared in the pool's shell which can drain all the water from the full pool within 5 days. How long will it take to fill the pool with the hose and the pump at the same time as the water runs off through the crack?
exactly 6 hours
approximately 5.7 hours
approximately 5.5 hours
approximately 6.8 hours