Question
Dan and Dave can work together and paint a house in 4 days
Dan works twice as fast as Dave. How long to paint house alone
Dan works twice as fast as Dave. How long to paint house alone
Answers
oobleck
If Dan takes x hours, then Dave takes 2x hours.
1/x + 1/(2x) = 1/4
1/x + 1/(2x) = 1/4
Levi
It needs 2 answers