Question

Determine which product has the lower unit price: a 5-pound bag of sugar for $1.86 or a 12-pound bag of sugar for $4.45?

Answer 1

The answer is a 12-pound bag that cost $4.45 because you divide 4.45 by 12 to find out how many it cost per pound to get $0.37083. While the 5-pound bag cost $0.372 per pound which is more. 

Answer 2

`12 / 5 = 2.4`
so

`1.86 * 2.4 = 4.46`
so at the same weight, the 5 pounder costs 1 cent more