MULTIPLE CHOICE QUESTIONS
REAL NUMBERS
1.
2.
From the choices given below mark the co-prime numbers
(a) 2, 3
(b) 2, 4
(c) 2, 6
A rational number equivalent to
(a)
3.
4.
5.
15
17
(b)
(d) 2, 110
5
is
7
25
27
An example of a whole number is
1
(a) 0
(b) 
2
(c)
10
14
(d)
10
27
(c)
11
5
(d) –7
5
Given a rational number  . This rational number can also be known as
9
(a) a natural number (b) a whole number
(c) a fraction
(d) a real number
The rational number 0.3 can also be written as
(a) 0.3
(b)
3
10
(c) 0.33
(d)
1
3
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
8.
A rational number between
(a)
9.
10.
1
14
2
21
(c)
5
14
(d)
5
21
(c) a rational number
(d) an irrational number
(c) 2 3  3 2
(d) none of these
(c) 9
(d) none of these
On adding 2 3 and 3 2, we get
(b) 5  3  2 
On dividing 6 27 by 2 3, we get
(a) 3 9
12.
(d) 13
1
2
and
is
7
7
The number 1.101001000100001... is
(a) a natural number (b) a whole number
(a) 5 5
11.
(b)
(c) 0.04
(b) 6
 5  2
5  5  is
(a) an irrational number
(c) a negative rational number
(b) a positive rational number
(d) an integer
Page 1
13.
14.
15.
16.

12  10  2  is
(a) a positive rational number
(c) an irrational number
 7  4
7  3 7  is
(a) a positive rational number
(c) a negative rational number
(b) an irrational number
(d) equal to zero
The number  3  3  3  3  is
(a) an irrational number
(c) not a natural number
(b) a rational number
(d) none of these
On simplifying

18.
(b)
1
(c) 210
(b) 12
12
The value of
1
10
when
(d) 12  2 35
5 7
(d) 84
1
For rationalising the denominator of the expression
(a) .3162
20.
(c)
35
On simplifying 83 × 24, we get
(a) 167
(b) 213
(a)
19.
2
5  7  , we get
(a) 12
17.
(b) equal to zero
(d) a negative integer
12
(c)
we multiply and divide by
(d)
2
3
10  3.162 is
(b) 31.62
(c) .03162
(d) 316.2
(b) 4
(c) 8
(d) 16
16 3/4 is equal to
(a) 2
Answers
1.
6.
11.
16.
Page 2
(a)
(d)
(c)
(d)
2.
7.
12.
17.
(c)
(b),(c)
(a)
(b)
3. (a)
8. (d)
13. (c)
18. (d)
4.
9.
14.
19.
(d)
(d)
(b)
(a)
5. (d)
10. (c)
15. (b)
20. (c)