The average age of a family of 6 members is 40 years.If the age of the youngest member is 7 years,what was the average age of the family at the birth of the youngest member?  Pick
A) 33 B) 18 C) 21 D) 12 E) 19
Present age of total members = 6 X 40 = 240   7 yrs back their ages were = 6 x 7 = 42   Ages at the birth of youngest member = 240 - 42= 
<gadget id="calculator">240 - 42</gadget>
<output>198</output>
198   Therefore, avg age at the birth of youngest member= 198/6= 
<gadget id="calculator">198/6</gadget>
<output>33</output>
33.   33NSWER:33
<result>A</result>
The average age of a family of 6 members is 40 years.If the age of the youngest member is 7 years,what was the average age of the family at the birth of the youngest member?