SOLUTION: Out of 44 boys in class 9 are of the age of 10, 15 at the age of 9, and the rest are at the age of 8. Find their average age?
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Question 868891: Out of 44 boys in class 9 are of the age of 10, 15 at the age of 9, and the rest are at the age of 8. Find their average age?
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
(9*10+15*9+[44-9-15]*8)/44
(90+135+20*8)/44
(225+160)/44
385/44=8.75 AVERAGE AGE.
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