Am I saving or losing money??

Question

I used to buy my dogs a 50 lb bag of dog food and I would give them each 6 cups per day. I have 2 dogs. I switched their food to a bag of dog food that is 28 lbs and they'll only be receiving 1 3/4-3 cups per day. The 50 lb bag was $35 and the 28 lb bag is $75. Am I saving or losing money per month?

Answer 1

To make sense of this problem, you need to give an exact (average) of # cups consumed per day from the 28 lb bag.

Giving a wide range (1.75 to 3 c/day) looks as if it's too vague.

Then, of course, you need to figure how many $ (or cents) each cup costs you, in the two different scenarios. Finally, multiply those unit costs per cup by # cups and you'll have the two values to compare.