The average age of 14 persons is 13 years. If the age of 15th persons is added, then the average remains same. What is the age (in years) of the 15th person?
Show answer & explanation
Correct answer: C
Explanation
Given:
Average of 14 individuals = 13
Average of 15 individuals = 13
Sum of 14 individuals = 14 × 13 = 182
Sum of 15 individuals = 15 × 13 = 195
Age of the 15th individual = 195 − 182 = 13