Problema Solution
if julie can take staples out of a wall in 60 minutes and zach can take the staples out in 40 minutes, how fast can they take them out if they work together?
Answer provided by our tutors
let 'x' be the time they need if they work together
1/60 + 1/40 = 1/x
by solving we find
x = 24 min
click here to see the step by step solution of the equation