Question : The average of all the odd integers between 2 and 22 is:
Option 1: 14
Option 2: 12
Option 3: 13
Option 4: 11
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Correct Answer: 12
Solution :
The odd integers between 2 and 22 are 3, 5, 7, 9, 11, 13, 15, 17, 19, and 21.
$\therefore$ Required average $=\frac{3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21}{10}=\frac{120}{10}=12$
Hence, the correct answer is 12.
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