7 people average age is 30. youngest person age is 4. find average of the people when youngest was born.	Select the correct option.
A) 23  B) 24  C) 25  D) 26  E) 27

Rationale: "average age of people = 30 so have total age = 210 before 7 years we have to deduct each person age by seven years 210 - 32 = 182 so average age would be 182 / 7 = 26 answer : d"
Answer: D