SOLUTION: working alone, ryan can dig a 10 ft by 10 ft hole in five hours. castel can dig the hole in six hours. how long would it take them if they worked together?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: working alone, ryan can dig a 10 ft by 10 ft hole in five hours. castel can dig the hole in six hours. how long would it take them if they worked together?      Log On


   

Question 551099: working alone, ryan can dig a 10 ft by 10 ft hole in five hours. castel can dig the hole in six hours. how long would it take them if they worked together?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
1/5 + 1/6 = 1/t


6t + 5t = 30


11t = 30


t = 30/11


t = 2 8/11


So it will take 2 8/11 hours or roughly 2.545 hours if they worked together.