Question

Here's a brain stretcher for you guys good luck it does take a lot thinking first to answer correctly gets a medal(:

Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 2 small pumps to fill the swimming pool.(assume that all large pumps are similar and all small pumps are also similar.)

Answer 1

2 hours? Correct?

Answer 2

Close (: keep trying

Answer 3

my fault you are correct sorry my answer things say 1 hour 40 minutes but if 1 small and 2 large is 4 hours than 2 small and 4 large is half of that which is 2 hours your right my mistake (: