The average age of 60 boys in a class was calculated as 12 years it was later realised that the action age of one of the boys in the class was 12.5 years but it was calculated as 14 years what is the actual average age of boys in the class
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Total age of 60 boys = 12 x 60 = 720
Age of 59 boys after removing the wrong age the student = 720 - 14 = 706
Total age of 60 students after correcting = 706 + 12.5 = 718.50
Actual average age of boys in class = 718.50 ÷ 60 = 11.98 years
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