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Math Help - Ratios in proportion.

  1. #1
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    Ratios in proportion.

    I really don't get how to answer this question:

    1. Derek, aged 15, and Ricki, aged 10, shared in the same ratio as their ages, all the conkers they found in the woods. Derek had 48 conkers.
    How many conkers did Ricki have?
    Please show your working.

    Thanks in advance!
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  2. #2
    MHF Contributor
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    if the ratio is 10:15 then derek has 15/(10+15) = 15/25 of the total.

    can you finish?
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