The average age of 3 girls is 16 years and their ages are in the proportion 1:2:3. The age of the youngest girl is?
Pick one.
A) 12 years	B) 7 years	C) 9 years	D) 10 years	E) 8 years
Total age of 3 boys = 16*3= 
<gadget id="calculator">16*3</gadget>
<output>48</output>
48   ratio of their ages= 1:2:3   Age of the youngest =48*1/6= 
<gadget id="calculator">48*1/6</gadget>
<output>8</output>
8 years   Answer is 8 years
<result>E</result>
The average age of 3 girls is 16 years and their ages are in the proportion 1:2:3. The age of the youngest girl is?