What is the average of 12, 15, 18, 21 and 24?
Correct answer: A. 18
Average = (12 + 15 + 18 + 21 + 24) ÷ 5 = 90 ÷ 5 = 18. For evenly spaced numbers, the average is simply the middle number.
easy
Answer and explanation
The correct answer is A. 18
Average = (12 + 15 + 18 + 21 + 24) ÷ 5 = 90 ÷ 5 = 18. For evenly spaced numbers, the average is simply the middle number.
Topic: Ratio, Proportion and Averages MCQs · Subject: Numerical Ability