Sugar at Rs. 15 per kg is mixed with sugar at Rs. 20 per

Sugar at Rs. 15 per kg is mixed with sugar at Rs. 20 per kg in the ratio 2 : 3. Find the price per kg of the mixture—

Given :- Ratio = 2 : 3 , C₁ = 15 kg , C₂ = 20 kg and Mean cost Price = Z
Using the alligation rule ,

C₂ – Z	=	2
Z – C₁	=	3

20 – Z	=	2
Z – 15	=	3

∴ Z = Rs. 18 per kg.