Decimal representation of a rational number cannot be :

(a) terminating

(b) non-terminating 

(c) non-terminating repeating 

(d) non-terminating non-repeating

The product of two irrational numbers is : 

(a) a rational number

(b) an irrational number 

(c) either a rational or an irrational number 

(d) neither a rational nor an irrational number

The sum of two irrational numbers is: 

(a) an irrational number 

(b) a rational number 

(c) neither a rational nor an irrational number

(d) either a rational or an irrational number

Which of the following sets contains only prime numbers?
a) {2, 3, 4, 5, 6}
b) {3, 5, 7, 11, 13}
c) {1, 2, 3, 5, 7}
d) {2, 4, 6, 8, 10}

If a and b are natural numbers,

then \((\sqrt{a}+\sqrt{b})(\sqrt{a}-\sqrt{b})\) is: 

(a) rational                             

(b) irrational                

(c) neither rational nor irrational 

(d) none of these

The product of any two irrational numbers is:           

(a) always an irrational number

(b) always a rational number  

(c) always an integer 

(d) sometimes rational, sometimes irrational

What is the value of 2³ × 3² × 5⁴?
a) 9000
b) 7500
c) 7200
d) 6000

The value of  \((343)^{-\frac{1}{3}}\) is equal to:

(a) 7                                       

(b) \(\frac{1}{7}\)

(c) \(\frac{1}{49}\)

(d) \(-\frac{1}{7}\)  

Which of the following is not a natural number?
a) 0
b) 2
c) 5
d) 7

Between two rational numbers: 

(a) there is no rational number

(b) there is exactly one rational number

(c) there are infinitely many rational numbers

(d) there are only rational numbers and no irrational nos.