Arithmetic Mcqs


Q.  The average age of M boys is ‘b’ years and of ‘n’ girls ‘c’ years. The average age of all together is_________?

a. (mb – nc)/ (m + n) years
b. (mb + nc)/ (m – n) years
c. (mb + nc)/ (m + n) years
d. (mb – nc)/ (m – n) years



 
 

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