Gasoline-oil ratio

The manufacturer of a scooter engine recommends a gasoline-oil fuel mixture ratio of 15 to 1. We can buy pure gasoline and a gasoline-oil mixture containing 75% gasoline in a particular garage.

How much gasoline and gasoline-oil mix do we need to make 8.0 L of fuel for the scooter engine?

Final Answer:

a =  6 l
b =  2 l

Step-by-step explanation:


a+b = 8.0
(1-0.75) b = 8.0 · (1/(1+15))

a+b = 8.0
(1-0.75)·b = 8.0 · (1/(1+15))

a+b = 8
0.25b = 0.5


b = 0.5/0.25 = 2
a = 8-b = 8-2 = 6

a = 6
b = 2

Our linear equations calculator calculates it.
b=2=2 l



Help us improve! If you spot a mistake, please let let us know. Thank you!







Tips for related online calculators
Need help calculating a sum, simplifying, or multiplying fractions? Try our fraction calculator.
Our percentage calculator will help you quickly and easily solve a variety of common percentage-related problems.
Check out our ratio calculator.
Do you have a linear equation or system of equations and are looking for a solution? Or do you have a quadratic equation?
Tip: Our volume units converter will help you convert volume units.

You need to know the following knowledge to solve this word math problem:

algebrabasic operations and conceptsnumbersUnits of physical quantitiesGrade of the word problem

Related math problems and questions: