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Mathematics, 27.03.2022 04:00 Hakika

The average age of three groups of people is : Group x = 11 years,
Group y = 27 years,
Group z = 51 years,
Group x and y = 17.2 years and
Group y and z = 32.6 years.
Find the average age of all the three groups.

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Answers: 1

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The average age of three groups of people is : Group x = 11 years,
Group y = 27 years,
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