Which is more​ economical: purchasing the economy size of a detergent at 2

Question

kilograms for ​$3.15

or purchasing the regular size at 880

grams for 60
cents​?

Answer 1

To compare the two options, we need to find the cost per gram of detergent for each option.

For the economy size:

- 2 kilograms = 2,000 grams
- Cost = $3.15
- Cost per gram = $3.15 ÷ 2,000 g = $0.001575/g

For the regular size:

- 880 grams
- Cost = $0.60
- Cost per gram = $0.60 ÷ 880 g = $0.0006818/g

Therefore, the regular size is more economical at $0.0006818 per gram of detergent, compared to the economy size at $0.001575 per gram of detergent.