7 people average age is 30. youngest person age is 5. find average of the people when youngest was born.
Choose the correct choice from the following options: 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 - 35 = 161 so average age would be 175 / 7 = 25 answer : c
Answer: C