MULTIPLE CHOICE QUESTIONS
REAL NUMBERS
1. From the choices given below mark the co-prime numbers
(a) 2, 3
(b) 2, 4
(c) 2, 6
(d) 2, 110
2. A rational number equivalent to
![](/cbse-ncert/class-9/9-math-num-3-UntitOE0.JPG)
is
3. An example of a whole number is
(a) 0
(b)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE5.JPG)
(c)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE6.JPG)
(d) –7
4. Given a rational number
![](/cbse-ncert/class-9/9-math-num-3-UntitOE7.JPG)
This rational number can also be known as
(a) a natural number
(b) a whole number
(c) a fraction
(d) a real number
5. The rational number
![](/cbse-ncert/class-9/9-math-num-3-UntitOE8.JPG)
can also be written as
(a) 0.3
(b)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE9.JPG)
(c) 0.33
(d)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE10.JPG)
6. If the decimal representation of a number is non-terminating, non-repeating then the number is
(a) a natural number
(b) a rational number
(c) a whole number
(d) an irrational number
7. The square root of which number is rational
(a) 7
(b) 1.96
(c) 0.04
(d) 13
8. A rational number between
![](/cbse-ncert/class-9/9-math-num-3-UntitOE11.JPG)
is
9. The number 1.101001000100001... is
(a) a natural number
(b) a whole number
(c) a rational number
(d) an irrational number
10. On adding
![](/cbse-ncert/class-9/9-math-num-3-UntitOE16.JPG)
we get
(a)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE17.JPG)
(b)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE18.JPG)
(c)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE19.JPG)
(d) none of these
11. On dividing
![](/cbse-ncert/class-9/9-math-num-3-UntitOE20.JPG)
we get
(a)
![](/cbse-ncert/class-9/9-math-num-3-UntitOE21.JPG)
(b) 6
(c) 9
(d) none of these
12. ![](/cbse-ncert/class-9/9-math-num-3-UntitOE22.JPG)
is
(a) an irrational number
(b) a positive rational number
(c) a negative rational number
(d) an integer
13. ![](/cbse-ncert/class-9/9-math-num-3-UntitOE23.JPG)
is
(a) a positive rational number
(b) equal to zero
(c) an irrational number
(d) a negative integer
14. ![](/cbse-ncert/class-9/9-math-num-3-UntitOE24.JPG)
is
(a) a positive rational number
(b) an irrational number
(c) a negative rational number
(d) equal to zero
15. The number
![](/cbse-ncert/class-9/9-math-num-3-UntitOE25.JPG)
is
(a) an irrational number
(b) a rational number
(c) not a natural number
(d) none of these
16. On simplifying
![](/cbse-ncert/class-9/9-math-num-3-UntitOE26.JPG)
we get
17. On simplifying 83 × 24, we get
(a) 167
(b) 213
(c) 210
(d) 84
18. For rationalising the denominator of the expression
![](/cbse-ncert/class-9/9-math-num-3-UntitOE30.JPG)
we multiply and divide by
19. The value of
![](/cbse-ncert/class-9/9-math-num-3-UntitOE34.JPG)
when
![](/cbse-ncert/class-9/9-math-num-3-UntitOE35.JPG)
is
(a) .3162
(b) 31.62
(c) .03162
(d) 316.2
Answers
1. (a) | 2. (c) | 3. (a) | 4. (d) | 5. (d) |
6. (d) | 7. (b),(c) | 8. (d) | 9. (d) | 10. (c) |
11. (c) | 12. (a) | 13. (c) | 14. (b) | 15. (b) |
16. (d) | 17. (b) | 18. (d) | 19. (a) | 20. (c) |