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The HCF of two numbers is 145 and their ...

The HCF of two numbers is 145 and their LCM is 2175. If one of the numbers is 725, find the other number.

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The correct Answer is:
hcf=2,lcm=23460
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KUMAR PRAKASHAN-REAL NUMBERS -TEST YOUR SKILLS
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  2. Using Euclid’s division algorithm, find the HCF of 1620, 1725 and 255.

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  3. For any positive integer n, prove that n^(3) - n is divisible by 6.

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  4. Find the missing numbers a, b, c and d in the following factor tree

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  6. The HCF of 128 and 68 is expressible in ? the form 128 m - 1 5 x 6 8 ....

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  7. Explain why 5 x 7 x 13 + 13 is a composite number

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  8. The HCF of two numbers is 145 and their LCM is 2175. If one of the nu...

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  9. Find the HCF and LCM of 510 and 92 and also verify that HCF x LCM = th...

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  10. Find the HCF and LCM of 60, 120 and 288.

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  11. Prove that 3 +2 sqrt(5) is irrational.

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  12. Prove that sqrt(3) + sqrt(5) is irrational.

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  13. Prove that sqrt(11) is irrational.

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  14. Prove that 5sqrt(7) is irrational.

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  15. Prove that (2)/sqrt(3) is irrational.

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  16. Prove that sqrt(p) + sqrt(q) is irrational, where p and q are primes.

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  17. Prove that there is no rational number whose square is 6.

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  18. Without actually performing the long division, , state whether the fol...

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  19. Express 0.bar43 in the (p)/(q) form

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  20. Write down the decimal expansions of the following rational numbers wi...

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