1. The generalised form of the number 33 is

2. The number 15287 is divisible by

3. If the three-digit number 6 y 8 is divisible by 9, then the value of y is

4. The number 5 × 100 + 7 × 10 + 9 in usual form is

5. If the three digit number 24x is divisible by 9, the value of x is:

6. The number 10 × 7 + 5 in usual form is

7. The number 100 × a + 10 × 6 + c in usual form is

8. Which of the following numbers is divisible by 5 ?

9. The generalised form of the number 52 is

10. If a number is divisible 9, then it is divisible by:

11. If the three-digit number 4 3 x is divisible by 9, what is the value of x ?

12. The usual form of 100 × 7 + 10 × 1 + 8 is:

13. The number 2146587 is divisible by:

14. If the number 9 y 7 is a multiple of 3, then y =

15. The number 3 × 100 + 4 × 10 + 5 in usual form is

16. If the three-digit number x 2 7 is divisible by 9, then the value of x is

17. The general form of abc is:

18. Find the value of A in the following:

19. The generalised form of the number 123 is

20. The number 10 × 2 + 7 in usual form is