## Grade 9 - Number-System

### Choose correct answer(s) from given choice

1)If 'm' is an irrational number than 'nm' is _______________ where 'n' is an integer.

 a. a rational or an irrational number b. an irrational number c. a rational number d. whole number
2)Is variable x in x2=0.16 represents a rational or irrational number ?
 a. Rational b. Irrational
3)An example of a rational number between and is
 a. 2.8 b. c. 3.9 d.
4)A rational number equivalent to
 -6 -6
is
a.
 30 -30

b.
 -30 30

c.
 30 30

d. None of these
5)Express the number 0.42523 in the form of
 p q
and reduce it to the lowest terms.
a.
 523 999

b.
 42523 100000

c.
 42481 99900

d.
 42523 99999

6)If a and b are rational numbers such that , than the possible values of a and be are :
a. a =
 1
, b =
 1

b. a=0, b=0
c. a=0, b=0 OR a =
 1
, b =
 1

d. a =
 1
, b =
 1

### Fill in the blanks

 7) There are number of rational numbers between any two non equal rational numbers.
 8) The rational number that does not have a reciprocal is
 9) Every number on the number line represents a number which is either or .
 10) The rational number that are equal to their reciprocals are & .
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