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29 September, 11:19

In Marks village 95% know English and 30 know French. What percent of people know both languages

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  1. 29 September, 11:28
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    25%

    Step-by-step explanation:

    Draw a Venn diagram. One circle is 95%, and the other circle is 30%. Let's say x is the overlap. The total is 100%. If you add the 95 and 30 together, you'll be counting the overlap twice, so subtract one x.

    95 + 30 - x = 100

    x = 25
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