Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains liters of natural oil for every liters of synthetic oil. In order to make liters of Petrolyn oil, how many liters of synthetic oil are needed?

Answer 1

If Petrolyn motor oil is a combination of natural oil and synthetic oil, and the ratio of natural oil to synthetic oil is 1:4, then for every 1 liter of natural oil, there are 4 liters of synthetic oil.

To make 1 liter of Petrolyn oil, we need 4 liters of synthetic oil.

Therefore, to make 100 liters of Petrolyn oil, we need 4 liters of synthetic oil for every 1 liter, which is a total of 4 * 100 = 400 liters of synthetic oil.

Answer: 400 liters of synthetic oil are needed.