Mathematics, 20.09.2020 07:01 jamessmith86
A class has 30 boys and 20 girls. The average age of
boys is 12 yrs and girls 12 yrs. What is the
average age of the whole class."
Answers: 2
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A class has 30 boys and 20 girls. The average age of
boys is 12 yrs and girls 12 yrs. What is the
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