Question 905748: Dan can do a piece of work in 8 days while Ed can do it it 24 days. How long it will take them to do work together? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 1/a+1/b=1/x
1/8+1/24=1/x
3/24+1/24=1/x
4/24=1/x
x=6
x=6 hours working together
check
1/a+1/b=1/x
1/8+1/24=1/x
24/192+8/192=1/x
32/192=1/x
192/32=x
x=6 hours working together
ok