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A number which is either rational or irrational is called…….
a) natural number                              
b) real number
c) imaginary number         
d) all of these

b


d

Real number divide in types.
a)2         
b) 3                        
c) 4        
d) 5

a

Explanation:1) Rational numbers    2) Irrational



The union of the set of rational numbers and irrational numbers is known as the set of.........numbers.
a) whole     
b) irrational           
c) natural
d)real

d


d

Explanation:it is the union of rational and irrational numbers


If a and b are real numbers then their sum is denoted by……..
a) a+b
b) a- b   
c) a b     
d) none of these

a