Number Systems-MCQ

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

      (a)   

(b)   

(c)   

(d)   

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

      (a)   

(b)   

(c)   

(d)   

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

      (a)   12

(b)   

(c)   

(d)   

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

      (a)   

(b)   12

(c)   

(d)   

19.  The value of when is

      (a)   .3162

(b)   31.62

(c)   .03162

(d)   316.2

20.  (16)^3/4 is equal to

      (a)   2

(b)   4

(c)   8

(d)   16