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12 April, 14:52

Gretchen can buy 17.4 ounces of Brand A toothpaste for $5.22, or she can buy 26.6 ounces of Brand B toothpaste for $6.65. Which of the following explains which is the better deal?

A. Brand A is the better deal, because it costs $0.08 less per ounce than Brand B.

B. Brand A is the better deal, because it costs $0.05 less per ounce than Brand B.

C. Brand B is the better deal, because it costs $0.08 less per ounce than Brand A.

D. Brand B is the better deal, because it costs $0.05 less per ounce than Brand A.

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Answers (2)
  1. 12 April, 16:32
    0
    Price of Brand A toothpaste for 17.4 ounces = $5.22

    Price of Brand A toothpaste for 1 ounce = $5.22/17.4 = 0.3

    Price of Brand B toothpaste for 26.6 ounces = $6.65

    Price of Brand B toothpaste for 1 ounces = $6.65/26.6 = 0.25

    So, if we see the price for per ounce of brand A and B, price of Brand B per ounce is less than brand A.

    and if we find the difference between the prices of both = 0.3 - 0.25 = 0.05

    Thus, the correct answer is "D", Brand B is the better deal, because it costs $0.05 less per ounce than Brand A".
  2. 12 April, 18:25
    0
    We need to calculate the unit price of both toothpaste

    Brand A is: $5.22 / 17.4 = $0.30 per ounce

    Brand B is: $6.65 / 26.6 = $0.25 per ounce

    Then Brand B is the better deal, because it cost $0.05 less per ounce than Brand A
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