let x = pipe B fill time
then A = x+20
1/x + 1/x+20 = 1/24
solve the quadratic equation for x
I'm having trouble with these two, I have no idea how to solve them. The work steps to finish and solution would be appreciated.
1)Annie, Bertha, and Candice take 1 hour 20 minutes to do a job together. Candice takes 2 times longer than Annie to do the work alone and 2 hours longer than Bertha to work alone. Find their individual rate of work.
2)Pipe A and Pipe B can fill a pool together in 24 hours. Pipe A takes 20 more hours than Pipe B. Find how long each of the pipes if they fill the pool seperately.
Much help is appreciated.