Find the average of p and q if the average of 22, 15, 28, p and q is 16.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 7.5
Formula used:
Average = Sum of observations/Number of observations --- (1)
Calculations:
Using equation (1), we get
⇒ (22 + 15 + 28 + p + q)/5 = 16
⇒ 65 + p + q = 80
⇒ p + q = 15
Average of p and q = (15/2) = 7.5