You can buy 5 cans for green beans at village market for $3.80 you can buy 10 of the same cans of beans at Sam´s club for $7.90 which place is the better buy?
The answer is the village market. Because if you want to buy 5 can it would be only $3.80 and if you wanna buy 5 more it would be $7.60 and you would be saving yourself 30 cents and would have more cans!
