Gas/oil ratio

Question

The gasoline/oil ratio for a certain snow mobile is 20 to 1. If 1 gallon equals 128 fluid ounces, how many fluid ounces of oil should be mixed with 10 gallons of gasoline? Round the answer to the nearest whole ounce.

Answer 1

10 x 128 = 1280 fluid ounces in 10 gallons.

 

The problem can be solved by setting up a proportion:

 

x/1280 = 1/20

 

 

x = 64 fluid ounces of oil are required for 10 gallons of gasoline.