The ages in years of four boys are 10 , 12, and 18 . what is the average age of the boys
To find the average age of the four boys, you add up all their ages and then divide by the total number of boys.
(10 + 12 + 14 + 18) / 4 = 54 / 4 = 13.5
Therefore, the average age of the four boys is 13.5 years.