Chainsaw fuel must be mixed at a 40:1 ratio of gasoline to oil in order for the chainsaw to run properly.
If you have two gallons of gas, how much oil do you need to add? (1 gallon = 128 ounces)
(a) 6 ounces
(b) 6.4 ounces
(c) 3.2 ounces
(d) 80 ounces
(e) 40 ounces