THE AVERAGE AGE OF M BOYS IS 'B' YEARS AND OF 'N' GIRLS 'C' YEARS. THE AVERAGE AGE OF ALL TOGETHER IS?
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Step-by-step explanation:
M+N=B+C
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Answered by
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Answer:
average age of m boys is B
and,
average age of N girls is C ..
average of together is
.
average of boys + average of girls
--------------------------------------------------
total no.of both
B+ C/M+N
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