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Which of the following numbers are perfe...

Which of the following numbers are perfect squares ? 11, 12, 16, 32, 36, 50, 64, 79, 81, 111, 121

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RD SHARMA ENGLISH-SQUARES AND SQUARE ROOTS-All Questions
  1. Find the smallest number by which the given number must be multiplie...

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  2. Find the smallest number by which the given number must be divided s...

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  3. Which of the following numbers are perfect squares ? 11, 12, 16, 32, 3...

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  4. Using prime factorization method, find which of the following numbe...

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  5. By what number should each of the following numbers be multiplied to...

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  6. By what numbers should each of the following be divided to get a per...

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  7. Find the greatest number of two digits which is a perfect square.

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  8. Find the least number of three digits which is perfect square.

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  9. Find the smallest number by which 4851 must be multiplied so that t...

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  10. Find the smallest number by which 28812 must be divided so that the...

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  11. Find the smallest number by which 1152 must be divided so that it b...

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  12. Explain why none of the numbers out of following is a perfect square. ...

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  13. 635, 98, 122 are not perfect squares as they leave remainder 2 when...

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  14. 67,  146, 363, 10003 are not perfect squares as they leave remainde...

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  15. Find the square root of the following number by prime factorization....

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  16. (3,4,5),\ (5, 12 , 13),\ (8, 15 ,\ 17) etc. are Pythagorean triplets, ...

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  17. Write a Pythagorean triplet whose one member is : (I)6             ...

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  18. The following numbers are not perfect squares. Give reason. (I)1057 ...

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  19. What will be the units digit of the squares of the following numbers...

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  20. Which of the following end with digit 1 ? 123^2,\ 77^2,\ 82^2,\ 161^2...

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