In a class, the average age of 40 boys is 15 years and the average of 30 girls is 13 years. what is the average age of the whole class?  Choose the correct choice from the following:	A) 11 Years	B) 12.6 Years	C) 13 Years	D) 13.5 Years	E) 14.1 Years
Total age of 70 students   (40X 15+30 X 13) = 990   Average = 990/70 = 14.1 Years   14.1 Years)
<result>E</result>
In a class, the average age of 40 boys is 15 years and the average of 30 girls is 13 years. what is the average age of the whole class?