Question

Dan and Dave can work together to paint a house in 4 days. Dan works twice as fast as Dave. How long would it take each of them to paint the house alone? please help answer i need it soon

Answer 1

Dan=6 days Dave=12 days

Explanation:

1/2x + 1/x = 1/4

multiply each by 8x bc 4 * 2x = 8x

4 + 8 = 2x

12 = 2x

6 = x