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11 January, 16:25

Production shows that only 3 of the first 10 phones are working, which is 30% of the phones. describe how the percentage of working phones changes if the eleventh and twelfth phones work correctly.

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  1. 11 January, 18:38
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    3/10 = 0.3 = 30%

    if phones 11 and 12 work ... 5/12 = 0.416 = 41.6%

    before u had 3 out of 10 working ... now u have 5 out of 12 working
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