If Wanda were to paint her living room alone, it would take 2 hours. Her sister Patricia could do the job in 4 hours. How long would it take them working toge

Question

If Wanda were to paint her living room alone, it would take 22 hours. Her sister Patricia could do the job in 44 hours. How long would it take them working together?

Answer 1

Time Together + Time Together = 1

    Time Alone          Time Alone

 

Let x = the time working together

x/2 + x/4 = 1     Multiply both sides by 4.

2x + x = 4

3x = 4

x = 1 1/3 hours