6.From the following numbers which one is divisible by 9 A.7234 B. 6003
C. 8888
D.4550

7.What is the value of “M” such that 64mO is divisible by 10?
A.6
B. 7
C. 9
D. All of the above

8. The value of 25 x 32 is
A. 288 B.300
C. 900
D. 188

9. The primefactorization of two numbers is given by: A=32 X 53 B=3 X 52
then the prime factorization of A/B is
A. 3 x 5
B. 32 x5
C. 3 x 52 D. 32 x 52

14. Find the value of 40+32 x 2+52

15. Find the H. C.F of 240 and 400 by using prime factorization method.