196k views
4 votes
Working together, two pumps can drain a certain pool in 3 hours. If it takes the older pump 12 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own?

User Isaactfa
by
7.2k points

1 Answer

3 votes

if it take 12 hours for a older pump and 3 hours for 2 pumps you would multiply 3x2 witch equals 6 and 6÷12 equals 3

User Andriy Kharchuk
by
8.6k points