6.

A 4-digit number is formed by repeating a 2-digit number such as 2525, 3232 etc. Any number of this form is exactly divisible by :

A) 7

B) 11

C) 13

D) smallest 3-digit prime number

7.

The number 311311311311311311311 is :

A) divisible by 3 but not by 11

B) divisible by 11 but not by 3

C) divisible by both 3 and 11

D) neither divisible by 3 nor by 11

8.

Which of the following numbers is exactly divisible by all prime numbers between 1 and 17 ?

A) 345345

B) 440440

C) 510510

D) 515513

9.

The value of P, when 4864 x 9P2 is divisible by 12

A) 2

B) 5

C) 8

D) None of this

10.

Which of the following numbers is divisible by 3, 7, 9 and 11 ?

A) 639

B) 2079

C) 3791

D) 37911

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