Gasoline-oil ratio

The manufacturer of a scooter engine recommends a gasoline-oil fuel mixture ratio of 15 to 1. In a particular garage, we can buy pure gasoline and a gasoline-oil mixture, which is 75% gasoline.

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

Result

a =  6 l
b =  2 l

Solution:


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

a+b = 8
0.25b = 0.5

a = 6
b = 2

Calculated by our linear equations calculator.
b=2=2  l b = 2 = 2 \ \text { l }



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