two cans of cola are sold in different sizes one is 1.3kg and costs 4.05£ and the other is 475g and costs £1.47 which size is better for money?
475 g = .475 kg
So...unit price = Cost / Quantity
So
4.05 / 1.3 ≈ 3.2 £ per kg
1.47 / .475 ≈ 3.09 £ per kg
The second is better
+22 
