In a class, the average age of 35 boys is 10 years and the average of 25 girls is 15 years. what is the average age of the whole class?	Options:  A) 11 Years  B) 12.1 Years  C) 13 Years  D) 13.5 Years  E) 14 Years
Total age of 60 students   (35X 10+25 X 15) = 725   Average = 725/60 = 12.1 Years   12.1 Years)
<result>B</result>
In a class, the average age of 35 boys is 10 years and the average of 25 girls is 15 years. what is the average age of the whole class?