Using two pumps
An 8-horsepower (hp) pump can fill a
tank in 8 hours. A smaller, 3-hp pump fills the same tank in
12 hours. The pumps are used together to begin filling this
tank. After four hours, the 8-hp pump breaks down. How
long will it take the smaller pump to fill the tank?
Hi, Ramel!
@fitzmerl duron Nice detailed
In reply to Hi, Ramel! by fitzmerl duron
@fitzmerl duron Nice detailed solution! :)
@Ramel In addition, a tabular form should help you visualize the rates, the times and the work = rate × time. :)