The average of 24 consecutive odd numbers is 24 The average of 25 consecutive even numbers is 24 Wha...........

Quantitative Aptitude (CDS) Number System

The average of 24 consecutive odd numbers is 24. The average of 25 consecutive even numbers is 24. What is the average of 12th odd number and 12th even number?

22.8

22.5

23.5

24.35

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Explanation:

If 24 is the average of 24 consecutive odd numbers, then 24 is the average of 12th and 13th odd numbers.
23 and 25 are 12th and 13th odd numbers respectively.
If 24 is the average of 25 consecutive even numbers, then the 13th number is 24. Therefore, the 12th even number is 22.
Thus, the average of 12th odd number and 12th even number =(23+22)/2 = 22.5