Problema Solution
Kate can type a manuscript in 6 hours. If Mark helps her they can type the complete manuscript i 4 hours. How long would it take Mark he did all the typing?
Answer provided by our tutors
let 'x' be the time Mark needs to type the manuscript alone
1/6 + 1/x = 1/4
by solving the equation we find
x = 12 hours
click here to see the step by step solution of the equation
Mark needs 12 hours to type the manuscript alone.