Question

You need to buy laundry detergent and your favorite brand comes in three different sizes. Size 1 costs $7 and is enough for 28 loads, size 2 costs $14.72 and is enough for 64 loads, and size 3 costs $24 and is enough for 100 loads.

Which size is the best deal?

Answer 1

The best deal is the option that provides the lowest cost per load.

Calculating for all options:

A:7/28= $0.25 per load
B:14.72/64= $0.23 per load
C: 24/100 = $0.24 per load

B is the lowest, therefroe B is the best deal.

Answer 2

Size 1 cost $ 7 that is enough for 28 loads but size 2 costs$14.72and is enough for 64loads
7+7=14 but it costs 14.72 so it is at higher rate .
28+28=66and size2 give 64 loads