Exact answer please. Will medal and fan

Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 8
liters of natural oil for every 5
liters of synthetic oil. In order to make
767 liters of Petrolyn oil, how many liters of natural oil are needed?

Question

Exact answer please. Will medal and fan 


Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 8
liters of natural oil for every 5
 liters of synthetic oil. In order to make 
767 liters of Petrolyn oil, how many liters of natural oil are needed?

thegrimreaper666 · Answer

We cannot give you the answer, but we can help.

thegrimreaper666 · Answer

So, we need to find how much natural oil is needed for 1 liter of synthetic.

thegrimreaper666 · Answer

Do you know what we would have to do to get that?

thegrimreaper666 · Answer

So I guess I'm talking to air now.
Greaaaaaaaat. 
Breaking my habit of talking to myself? Not going to happen apparently.