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If sqrt(3^n)=729 , then the value of ...

If `sqrt(3^n)=729` , then the value of `n` is (a) 6 (b) 8 (c) 10 (d) 12

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RS AGGARWAL-SQUARE ROOTS AND CUBE ROOTS-All Questions
  1. If 0. 13+p^2=13 , then p equals (a) 0.01 (b) 0.1 (c) 10 (d) 100

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  2. What number should be divided by sqrt(0. 25) to give the result ...

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  3. If sqrt(3^n)=729 , then the value of n is (a) 6 (b) 8 (c) 10 (d) 12

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  4. If sqrt(18xx14xxx)=84 , then x equals (a) 22 (b) 24 (c) 28 (d) 32

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  5. 28sqrt(?)+1426=3/4 of 2872 (a) 576 (b) 676 (c) 1296 (d) 1444

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  6. sqrt(?/(169))=(54)/(39) (a) 108 (b) 324 (c) 2916 (d) 4800

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  7. If sqrt(x)+sqrt(441)=0. 02 , then the value of x is (a) 0.1764 (...

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  8. sqrt((. 0196)/?)=0. 2 (a) 0.49 (b) 0.7 (c) 4.9 (d) None of these

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  9. sqrt(0. 0169xx?)=1. 3 (a) 10 (b) 100 (c) 1000 (d) None of these

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  10. If sqrt(1369)+sqrt(. 0615+x)=37. 25 , then x is equal to 10^(-1) (b) 1...

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  11. If sqrt((x-1)(y+2))=7 , x and y being positive whole numbers, then ...

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  12. If sqrt(. 04xx. 4xxa)=. 004xx. 4xxsqrt(b) , then a/b is 16xx10^(-3) (b...

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  13. Three-fifth of the square of a certain number is 126.15. What is th...

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  14. sqrt((0. 361)/(0. 00169))=? (1. 9)/(13) (b) (19)/(13) (c) (1. 9)/(130...

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  15. sqrt(48.4/0.289) is equal to a. 1\ 5/17 b. 12\ 1/17 c. 12\ 16/17 d. 12...

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  16. If sqrt(1+x/(169))=(14)/(13) , then x is equal to (a) 1 (b) 13 (c) 27 ...

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  17. sqrt(1+(55)/(729))=1+x/(27) , then the value of x is (a) 1 (b) 3 (c...

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  18. sqrt(4/3)-sqrt(3/4)=? (4sqrt(3))/6 (b) 1/(2sqrt(3)) (c) 1 (d) -1/(2sq...

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  19. The value of sqrt(2) upto three places of decimal is (a) 1.41...

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  20. (2sqrt(27)-sqrt(75)+sqrt(12)) is equal to sqrt(3) (b) 2sqrt(3) (c) 3sq...

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