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Which of the following will have 1 at it...

Which of the following will have 1 at its units place?

A

`19^2`

B

`17^2`

C

`18^2`

D

`16^2`

Text Solution

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The correct Answer is:
A
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NCERT EXEMPLAR-SQUARE - SQUARE ROOT AND CUBE-CUBE ROOT-Exercise
  1. Which of the following will have 1 at its units place?

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  2. Write the Pythagorean triplet whose one of the numbers is 4.

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  3. Using prime factorisation, find the square roots of 11025

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  4. Using prime factorisation, find the square roots of 4761

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  5. Using prime factorisation, find the cube roots of 512

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  6. Using prime factorisation, find the cube roots of 2197

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  7. Is 176 a perfect square? If not, find the smallest number by which it ...

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  8. Is 9720 a perfect cube? If not, find the smallest number by which it s...

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  9. Write two Pythagorean triplets each having one of the numbers as 5.

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  10. By what smallest number should 216 be divided so that the quotient is ...

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  11. By what smallest number should 3600 be multiplied so that the quotient...

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  12. Find the square root of the following by long division method. 1369

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  13. Find the square root of the following by long division method. 5625

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  14. Find the square root of the following by long division method. 27.04

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  15. Find the square root of the following by long division method. 1.44

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  16. What is the least number that should be subtracted from 1385 to get a ...

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  17. What is the least number that should be added to 6200 to make it a per...

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  18. Find the least number of four digits which is a perfect square.

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  19. Find the greatest number of three digits which is a perfect square.

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  20. Find the least square number which is exactly divisible by 3, 4, 5, 6 ...

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  21. Find the length of the side of a square if the length of its diagonal ...

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