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
is
3. An example of a whole number is
(a) 0
(b)
(c)
(d) –7
4. Given a rational number
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
can also be written as
(a) 0.3
(b)
(c) 0.33
(d)
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
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
we get
(a)
(b)
(c)
(d) none of these
11. On dividing
we get
(a)
(b) 6
(c) 9
(d) none of these
12. is
(a) an irrational number
(b) a positive rational number
(c) a negative rational number
(d) an integer
13. is
(a) a positive rational number
(b) equal to zero
(c) an irrational number
(d) a negative integer
14. is
(a) a positive rational number
(b) an irrational number
(c) a negative rational number
(d) equal to zero
15. The number
is
(a) an irrational number
(b) a rational number
(c) not a natural number
(d) none of these
16. On simplifying
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
we multiply and divide by
19. The value of
when
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) |