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The number 6n^2+6n for natural number n ...

The number `6n^2+6n` for natural number n is always divisible by 6 only (b) 6 and 12 (c) 12 only (d) 18 only

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RS AGGARWAL-NUMBER SYSTEM-All Questions
  1. If a and b are two odd positive integers, by which of the following...

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  2. The difference between the squares of any two consecutive integers ...

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  3. The number 6n^2+6n for natural number n is always divisible by 6 only...

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  4. The difference of a number consisting of two digits and the number ...

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  5. The sum of a number consisting of two digits and the number formed ...

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  6. The largest natural number, which exactly divides the product of an...

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  7. If n is a whole number greater than 1, then n^2(n^2-1) is always divis...

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  8. If n is any odd number greater than 1, then n\ (n^2-1) is divisible b...

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  9. The sum of digits of a 3-digit number is subtracted from the number...

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  10. A number is multiplied by 11 and 11 is added to the product. If the...

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  11. The product of any three consecutive natural numbers is always divis...

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  12. The sum of three consecutive odd numbers is always divisible by I....

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  13. The greatest number by which the product of three consecutive multi...

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  14. If p is a prime number greater than 3, then (p^2-1) is always divisibl...

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  15. The difference between the squares of two consecutive odd integers ...

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  16. A 4-digit number is formed by repeating a 2-digit number such as 25...

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  17. A 6-digit number is formed by repeating a 3-digit number: for examp...

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  18. The sum of the digits of a natural number (10^n-1) is 4707, where n is...

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  19. (x^n-a^n) is divisible by (x-a) for all values of n (b) only for even...

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  20. Which one of the following is the number by which the product of 8 ...

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