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The arithmetic mean of first 11 natur...

The arithmetic mean of first 11 natural numbers is (a) 5        (b) 5.5        (c) 6.0         (d) 6.5

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RS AGGARWAL-AVERAGE-All Questions
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  11. The average of odd numbers up to 100 is (a) 49      (b) 49.5     (c...

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  12. In a family, the average age of a father and a mother is 35 years. ...

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  14. The average of x1,\ x2,\ x3 and x4 is 16. Half the sum of x2,\ x...

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  15. If the mean of 5 observations x ,\ x+2,\ x+4,\ x+6 and x+8 is 11, t...

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  17. The average of the two-digit numbers, which remain the same when th...

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  18. Company C sells a line of 25 products with an average retail price ...

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