7 people average age is 30. youngest person age is 8. find average of the people when youngest was born. Choose the correct choice:
A) 23  B) 24  C) 25  D) 22  E) 27
average age of people =30   so have total age =210   before 7 years we have to deduct each person age by seven years   210-56= 
<gadget id="calculator">  210-56</gadget>
<output>154</output>
154   so average age would be 154/7= 
<gadget id="calculator">154/7</gadget>
<output>22</output>
22   ANSWER:22
<result>D</result>
7 people average age is 30. youngest person age is 8. find average of the people when youngest was born.