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The product of the HCF and LCM for the n...

The product of the HCF and LCM for the number 50 and 20 is
a)20 b)10 c)100 d)1000

A

20

B

10

C

100

D

1000

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R G PUBLICATION-REAL NUMBERS-EXERCISE
  1. The following real numbers have decimal expansions as given below.In e...

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  2. If a,b are coprime then a^2,b^2 are -- a) prime b)Coprime c)Composite ...

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  3. The product of the HCF and LCM for the number 50 and 20 is a)20 b)10 ...

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  4. The LCM of two numbers is 1200 which of the following cannot be their ...

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  5. If the HCF of 65 and 117 is expressible in the form 65m-117,then the v...

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  6. The co-prime pair is

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  7. If p and q are positive integers such that p=ab^2 and q=a^3b,where a,b...

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  8. If a and b are positive integers such that a=x^3y^2and b=xy^3,where x,...

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  9. If x=2^3xx3xx5^2,y=2^2xx3^3 the HCF (x,y) is a)18 b)102 c)12 d) 2...

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  10. If a=2^2xx3^3xx5^4 and b=2^3xx3^2xx5 then HCF (a,b) is a)90 b)180 ...

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  11. LCM of (2^3xx3xx5) and (2^4xx5xx7) is

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  12. HCF of (2^3xx3^2xx5),(2^2xx3^3xx5^2) and (2^4xx3xx5^3xx7) is a)60 b)...

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  13. Given that HCF (2520,6600)=40 and LCM(2520,6600)=252xxx then the value...

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  14. Given that HCF (26,91)=13 then LCM of (26,91) is a)182 b)282 c)192...

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  15. If HCF (26,169)=13,then LCM(26,169) is a)13 b)26 c)52 d)338

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  16. If a=2^3xx3,b=2xx3,c=3^nxx5 and.LCM(a,b,c)=2^3xx3^2xx5 then n= a)1 b...

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  17. For some positive integer m,every positive even integer is of the form...

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  18. For some positive integer n,every positive odd integer is of the form

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  19. Euclid's division Lemma states that if a and b are any two positive in...

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

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