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If the average of x and 1/x(x ne 0) is M...

If the average of x and `1/x(x ne 0)` is M, then the average of `x^2` and `1/x^(2)` is:

A

`1-M^(2)`

B

`1-2M`

C

`2M^(2)-1`

D

`2M^(2) + 1`

Text Solution

Verified by Experts

The correct Answer is:
C
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GAGAN PRATAP -AVERAGE-Multiple Choice Questions
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  2. The average of 126 numbers is 951. If each number is multipled by 0.2 ...

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  3. If the average of x and 1/x(x ne 0) is M, then the average of x^2 and ...

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  4. The average of a number and its reciprocal is 4. The average of its cu...

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  5. If a, b. c, d, e are five consecutive odd numbers, their average is:

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  6. a,b,c,d,e,f,g are consecutive even numbers. J, k, I, m, n are consecut...

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  7. The average of 7 consecutive natural numbers is K. The next three natu...

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  8. The average of five consecutive even numbers is M. If the next five ev...

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  9. The average of four consecutive even numbers is 27. By adding which nu...

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  10. The average of 5 consecutive odd numbers is 75. By adding which number...

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  11. The average of four consecutive odd natural numbers is eight less than...

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  12. The average of 35 consecutive natural numbers is N. Dropping the first...

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  13. The sum of 17 consecutive numbers is 289. The sum of another 10 consec...

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  14. Average of n numbers is a. The first number is Increased by 2, second ...

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  15. The average of 27 numbers is zero. Out of them, how many may be greate...

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  16. The average of 1088 real numbers is zero. At most how many of them can...

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  17. The mean of fifteen different natural numbers is 13. The maximum value...

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  18. If the arithmetic mean of 3a and 4b is greater than 50, and a is twice...

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  19. The average of three numbers a, b and c is 2 more than c. The average ...

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  20. The average monthly income (in Rs) of certain agricultural workers is ...

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