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03-01-2020
Mathematics

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

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MathPhys MathPhys

03-01-2020

Answer:

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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