Mathematics
Alligation Rule
Find the ratio in which two ingredients should be mixed.
(Cheap Qty) : (Dear Qty) = (Dear Price - Mean Price) : (Mean Price - Cheap Price)
Formula Explanation
Alligation gives the required ratio directly from the prices.
Variables Explained
Mean Price = desired average price of mixture.
Solved Example
Mix tea at ₹40/kg and ₹60/kg to get mixture at ₹45/kg. Ratio?
(60-45) : (45-40) = 15 : 5 = 3 : 1.