Math

A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange.

By what percentage is the apple lighter than the grapefruit?

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  1. g = 1.08 o -----> o = g/1.08

    a = .9 o ---> o = a/.9

    g/1.08 = a/.9
    .9 g = 1.08a
    a = (.9/1.08) g
    a = .8333... g

    state your conclusion.

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  2. So the answer would be 83 1/3 %?

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  3. no,

    look at how "an apple is 10% lighter ..." became .9
    so what percentage do I need to have .8333... ?

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  4. 100 - 83.333... = 16.666...
    Thanks so much

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  5. whats the answer

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  6. I think the answer is 16 1/6

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  7. The answer is 16 2/3

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  8. it's 16 2/3

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  9. It's 20%

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  10. Heavier = 20%
    Lighter = 16 2/3 %

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  11. its 21

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  12. Heavier = 20%
    Lighter = 16 2/3 %

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  13. yes

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  14. The answer is 20

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  15. Answer:
    Hence, the grapefruit is 20% heavier than the apple.

    Step-by-step explanation:
    Let the weight of orange be x.

    This means that the weight of grapefruit is:

            1.08x

    ( Since grapefruit is: 8% heavier than orange )

    Also, the weight of apple is 10% lighter than apple.

    This means that the weight of apple is: 0.90 x

    Hence, the percent change in the weight of grapefruit as compared to apple is calculated by:

                Hope this helps!

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  16. 20%

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  17. The correct answer is 16.666...%!

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  18. Grapefruit=108
    Orange=100
    Apple=90

    a) (108-90)/90*100 = 18/90*100=20%

    b) (108-90)/108= 18/108*100=16 2/3%

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