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7xx11xx13xx15+15 is a:...

`7xx11xx13xx15+15` is a:

A

Composite number

B

Whole number

C

Prime number

D

(a) and (b) both

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AGRAWAL PUBLICATION-REAL NUMBERS-EXAMPLE
  1. If two positive integers p and q can be expressed as p=ab^2 and q=a^3b...

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  2. 7xx11xx13xx15+15 is a:

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

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  4. 1.23451326... is

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  5. A decimal number 0.bar8 can be expressed in its simplest form as

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  6. Product of two numbers is 18144 and their HCF is 6, thn their LCM is.

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  7. The decimal expression of the rational number 23/(2^2xx5) will termina...

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  8. If a and b are positive integers, then (HCF(a,b)xxLCM(a,b))/(ab)=

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  9. is the H.C.F. of two consecutive even numbers.

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  10. If two positive integers p and q can be expressed as p=a^2b^3 and q=a^...

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  11. The LCM of two numbers is 182 and their HCF is 13. If one of the numbe...

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  12. Given that HCF(135,225)=45, find the LCM (135,225).

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  13. After how many decimal places will the decimal representation of the r...

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  14. Are the smallest prime and the smallest composite numbers co-prime? Ju...

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  15. The HCF of two numbers a and b is 5 and their LCM is 200. Find the pro...

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  16. Can two numbers have 18 as their HCF and 380 as their LCM? Give reason...

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  17. Find a rational number between sqrt2and sqrt7

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  18. Write the number of zeroes in the end of a number whose prime factoris...

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  19. If the HCF of (336.,54)=6, find the LCM(336,54).

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  20. Find a rational number between sqrt2and sqrt3

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