In a class, the average age of 25 boys is 12 years and the average of 18 girls is 8 years. what is the average age of the whole class?
Choices.
A) 12 Years
B) 10.3 Years
C) 12.6 Years
D) 13 Years
E) 15 Years
Total age of 43 students   (25X 12+18 X 8) = 444   Average = 444/53 = 10.3 Years   10.3 Years
<result>B</result>
In a class, the average age of 25 boys is 12 years and the average of 18 girls is 8 years. what is the average age of the whole class?