Price of less grade coconut oil = Rs.
Price of fine grade coconut oil = Rs.
Quantity of fine grade coconut oil = 10 L
Final price of mixture = Rs
Let the quantity of low grade coconut oil be x L
By the rule of alligation, we have-
Quantity of fine grade coconut oil,1 unit = 10 L
So, Quantity of low grade coconut oil, 2 unit = 20L