Problema Solution
Bob can build a fence in 10 hours. If frank helps him build the fence, they can complete it in 6 hours. How long would it take frank to build the fence by himself?
Answer provided by our tutors
let 'x' represent the time it would take Frank to build the fence by himself
1/6 = 1/x + 1/10
solving for 'x' we have x=15
it would take Frank 15 hours to build the fence by himself