Question

1. What can be the remainder If a positive integer ‘a’ is divided by 2 ?
A) 0 B) 1 C) 2 D) 0 or 1
2. Find the H.C.F of two consecutive positive integers?
A) 1 B) 0 C) 2 D) None 3. What is the L.C.M of two prime number ‘a’ and ‘b’?
A) a/b B) aXb C) a+b D) None
4. What is the product of two equal irrational numbers?
A) rational B) irrational C) 0 D) 1 5. The exponent of ‘3’ in the prime factorisation of 144?
A) 1 B) 2 C)3 D) 4 6. The sum of exponents of prime factors in the prime factorisation of 252 ? A) 5 B) 6 C) 7 D) 8
7. After how many places The decimal expansion of 17/8 terminates?
A) 2 B) 3 C) 1 D) None
8.What is the H.C.F of 3x and 5x ?
A) 15x B) 15 C) 5 D) x
9. Find H.C.F of two numbers If the ratio of numbers is 2:3 and their L.C.M is 42 ? A) 5 B) 3 C) 7 D) 6
10. What is the value of 3a+2b If 96=2a X 3b ?
A) 12 B) 16 C) 17 D) 15
11. What is the H.C.F of smallest prime and smallest composite number ?
A) 0 B) 1 C) 2 D) 0 or 1
12 .If L.C.M and H.C.F of two positive integers ‘ a ‘ and ‘b ‘ are ‘ x’ and ‘y’ then a/x=
A) 0 B) yXb C) y/b D) b/y​

Answer 1

1 D

2 c

3 a

4 c

5 b

6 c

7 c

8 a

9 d

10 d

11 d

12 a

Answer 2

Answer:

1. D

2. A

3. B

4. A

5. B

6. A

7. B

8. D

9. C

10.

11. C

12. C