12 numbers are in arithmetic progression. Average of first and last number of this progression is 16. What is the average of these 12 numbers?
Show answer & explanation
Correct answer: B
Explanation
Given:
Number of terms = 12 (Arithmetic Progression)
Average of the first and the last term = 16
According to the formula:
Average in an AP = (First term + Last term) / 2
Average = 16