Question

A store has two different brands of laundry detergent. Brand A can do 105 loads of laundry and costs $21.99. Brand B does 80 loads of laundry and costs $17.99. Which laundry detergent is the better buy and what is that detergent's unit price?

Answers:
A. Brand A $0.20
B. Brand A $0.21
C. Brand B $0.22
D. Brand B $0.23​

Answer 1

B. Brand A 0.21 is the better buy

Answer 2

B. Brand A $0.21

Explanation:

(round to nearest cent)

Brand A: 21.99/105 = .2094 = .21 ( .2094 rounds to .21)

Brand B: 17.99/80 = .2248 = .22 ( .2248 rounds to .22)

Therefore Brand A is a better buy for $0.21 per load