The average age of 17 persons is 37 years. The average age increases by 1 year when 2 new persons are included. What is the average age of the new persons?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. .
Initial total age = 17 × 37 = 629
New average = 37 + 1 = 38
Total persons = 17 + 2 = 19
New total age = 19 × 38 = 722
Age of 2 new persons = 722 - 629 = 93
Average age of new person = = 46.5 years