Subset of Set of Real Numbers

Q. If $\frac{432}{2^m\times 5^n}$ ends after five places of decimal, then the possible values of m and n cannot be

यदि $\frac{432}{2^m\times 5^n}$ का मान दशमलव के पांच स्थान पश्चात् समाप्त होता है, तब m व n के संभावित मान कौनसे नहीं हो सकते है

1. m = 9, n = 3
   
2. m = 7, n = 5
   
3. m = 9, n = 5
   
4. m = 9, n = 9
   

Q. If $P$ is the set of all Irrational Numbers,
$Q$ is the set of all Rational Numbers,
$Z$ is the set of all Integers,
then which of the following is correct?

1. $Z\subset Q;Z\subset ̸P.$
2. $Q\subset Z$
3. $Z\subset P;Z\subset Q$

Q. Which of the following belong to the set of irrational numbers?

1. $\sqrt{5}$
2. $\sqrt{8}1$
3. $\sqrt{1}3$
4. $\pi$

Q. If $X=\{x:x\text{is a solution of}{x}^2+6x+9=0\},$ then which of the following is correct?

1. $X\subset N\subset W\subset Z$
2. $X\subset W\subset Z$
3. $X\subset Z$
4. $X\subset N$

Q. Which of the following is the subset of irrational number?

1. Natural numbers
2. Integers
3. Real numbers
4. None of the above