Problema Solution
Hector can detail a car in 60 minutes. If Alonzo helps him, together they can finish the job in 36 minutes. How long will it take Alonzo to detail a car by himself?
Answer provided by our tutors
Let 'x' represent the number of minutes Alonzo needs to detail a car by himself.
Alonzo's rate per min is: 1/x car per min
Hectors rate per min is: 1/60 car per min
The together rate per min is: 1/36 car per min
1/x + 1/60 = 1/36
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click here to see the equation solved for x
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x = 90 min
Alonzo can detail a car in 90 minutes.