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Which of the following is a rational num...

Which of the following is a rational number ?

A

`sqrt3`

B

`sqrt5`

C

`sqrt7`

D

`sqrt9`

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VGS PUBLICATION-BRILLIANT-REAL NUMBERS-EXERCISE
  1. The H.C.F of the number 3^7xx5^3xx2^4 and 3^2xx7^4xx2^8 is

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  2. The decimal expansion of 0.225 in its rational form is

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  3. Which of the following is a rational number ?

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  4. What is the L.C.M of greatest 2 digit number and the greatest 3 digit ...

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  5. What is the H.C.F of n and n+1 where n is a natural number?

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  6. What is the L.C.M of least prime and the least composite number?

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  7. The product of L.C.M and H.C.F of the least prime and least composite ...

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  8. n^2-1 is divisible by 8, if n is

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  9. If x and y are any two co-prime, then their L.C.M. is

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  10. If x and y are any two relative prime numbers, then their H.C.f is

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  11. If m and n are co-primes, then H.C.F of m^2 and n^2 is

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  12. If n is a natural number, then which of the following expression ends ...

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  13. The number of prime factors of 72 is

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  14. How many prime factors are there in the prime factorization of 240?

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  15. After how many places the decimal expansion of 23//125 terminates?

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  16. After how many digits will the decimal expansion of 11//32 terminates?

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  17. p,q are co-primes and q= 2^n.5^m where m>n , then the decimal expansi...

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  18. The decimal expansion of 9/17 is

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  19. The decimal expansion of 27/14 is

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  20. 5.6789bar(1) is a…… number.

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