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root3(333+root3(987+root3(2197))) is equ...

`root3(333+root3(987+root3(2197)))` is equal to

A

21

B

18

C

7

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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S CHAND IIT JEE FOUNDATION-POWERS AND ROOTS -SECTION-B SQUARE ROOTS AND CUBE ROOTS (QUESTION BANK 5(B))
  1. sqrt[(0.49)/(0.25)]+sqrt[(0.81)/(0.36)] is equal to:

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  2. Simplify : sqrt(0.0025)xxsqrt(2.25)xxsqrt(0.0001)

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  3. Given that sqrt(1225)=35, find the value of sqrt(12.25)+sqrt(0.1225)+s...

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  4. The square root of 0.bar4 is :

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  5. If sqrt(1+(25)/(144))=(x)/(12), then x equals

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  6. Of the numbers 0.16, sqrt(0.16), (0.16)^(2) and 0.1bar6, the least num...

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  7. 1008 divided by which single digit number gives a perfect square?

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  8. Find the smallest natural number by which 980 should be multiplied to ...

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  9. Simplify root3((1)/(8)xx(125)/(64))

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  10. Find the value of root3(sqrt(441)+sqrt(16)+sqrt(4))

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  11. Simplify sqrtroot3(0.000729)

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  12. Simplify (root3(8))/(sqrt(16))divsqrt(100)/(sqrt(49))xxroot3(125)

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  13. If sqrt(24)=4. 899 , the value of sqrt(8/3) is (a) 0.544 (b) 1.3...

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  14. If sqrt(6)=2.55, then the value of sqrt((2)/(3))+3sqrt((3)/(2)) is

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  15. What should come in place of both the question marks in the equatio...

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

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  17. root3(333+root3(987+root3(2197))) is equal to

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  18. if sqrt(x/y)+sqrt(y/x)=10/3 and x+y=10 , then the value of xy will be ...

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  19. The sum of the squares of 2 numbers is 146 and the square root of one ...

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  20. If (28)^(2) is added to the square of a number, the answer so obtained...

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