Problema Solution
Working together, Scott and perry can wash a car in 6.16 minutes. Had he done it alone it would've taken perry 14 minutes. How long would it take Scott to do it alone?
Answer provided by our tutors
lets x = the minutes Scott needs to wash the car alone
Scott's rate is 1/x cars per min
Perry can was the car alone in 14 min thus his rate is 1/14 cars per min
their together rate is 1/6.16 cars per min
now we can write:
1/x + 1/14 = 1/6.16
by solving we find:
x = 11 min
click here to see the step by step solution of the equation:
Scott can wash the car in 11 min alone.