7 people average age is 30. youngest person age is 6. find average of the people when youngest was born. Pick.
A) 23  B) 24  C) 25  D) 26  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 210-42=161   so average age would be 161/7=24   ANSWER:24
<result>B</result>
7 people average age is 30. youngest person age is 6. find average of the people when youngest was born.