Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

If \[\mathbf{3x}+\frac{1}{\mathbf{3x}}=\mathbf{3}\], then the value of \[27{{x}^{3}}+\frac{1}{27{{x}^{3}}}\] is

A.  -52                  
B.  52             
C.  18         
D.  -18
Answer» D.  -18
2.

Vikas has Rs. \[({{x}^{3}}+2ax+b),\] with this money he can buy exactly \[(x-1)\] jeans or\[(x+1)\] shirts with no money left. How much money Vikas has, if\[x=4?\]

A.  Rs. 80                         
B.  Rs. 120
C.         Rs. 30             
D.         Rs. 60
Answer» E.
3.

If \[{{\left( \mathbf{3a+1} \right)}^{\mathbf{2}}}\mathbf{+}{{\left( \mathbf{b-1} \right)}^{\mathbf{2}}}\mathbf{+}{{\left( \mathbf{2c-3} \right)}^{\mathbf{2}}}\mathbf{=0,}\] than value of \[\left( \mathbf{3a+b+2c} \right)\]is equal to:  

A.  3    
B.  -1
C.  2                                
D.  5
Answer» B.  -1
4.

If the quotient is\[3{{x}^{2}}-2x+1\], remainder is\[2x-5\]and divisor is\[x+2\], what is the dividend?

A. \[3{{x}^{3}}-4{{x}^{2}}+x-3\]         
B. \[3{{x}^{3}}-4{{x}^{2}}-x+3\]
C.        \[3{{x}^{3}}+4{{x}^{2}}-x+3\]
D.        \[3{{x}^{3}}+4{{x}^{2}}-x-3\]                     
Answer» E.
5.

If \[\mathbf{x}=\mathbf{2},\] \[\mathbf{y}=\mathbf{3}\] and \[\mathbf{z}=-\mathbf{5},\] then \[{{\mathbf{x}}^{\mathbf{3}}}\mathbf{+}{{\mathbf{y}}^{\mathbf{3}}}\mathbf{+}{{\mathbf{z}}^{\mathbf{3}}}\mathbf{=}\]

A.  90                               
B.  -90         
C.  0                                
D.  368
Answer» C.  0                                
6.

Area of a rectangular field is \[(2{{x}^{3}}-11{{x}^{2}}-4x+5)\,sq.\]units and side of a square field is (\[(2{{x}^{2}}+4)\]units. Find the difference between their areas (in sq. units).

A. \[4{{x}^{4}}-2{{x}^{3}}-4x+11\]
B. \[4{{x}^{4}}-2{{x}^{3}}+27{{x}^{2}}+4x+11\]
C. \[4{{x}^{4}}+27{{x}^{2}}+4x-11\]
D. \[4{{x}^{4}}+2{{x}^{3}}+27{{x}^{2}}+4x+11\]   
Answer» C. \[4{{x}^{4}}+27{{x}^{2}}+4x-11\]
7.

Find the value of \[{{2}^{\frac{1}{4}}}{{.4}^{\frac{1}{8}}}{{.16}^{\frac{1}{16}}}{{.256}^{\frac{1}{32}}}\].

A.                      \[1\]                
B.         \[2\]                
C.  \[4\]                
D.         \[8\]
Answer» C.  \[4\]                
8.

If \[x+\frac{1}{x}=a+b\] and \[x-\frac{1}{x}=a-b\], which of the following is true?

A. \[ab=1\]           
B.        \[a=b\] 
C.        \[ab=2\]           
D.        \[a+b=0\]
Answer» B.        \[a=b\] 
9.

A rectangular field has an area \[(35{{x}^{2}}+13x-12){{m}^{2}}.\]What could be the possible expression for length and breadth of the field?

A. \[(5x+4)\]and\[(7x-3)m\]
B. \[(3x+9)m\]and\[(7x-12)m\]
C.  Both (a) and (b)
D.  None of these
Answer» B. \[(3x+9)m\]and\[(7x-12)m\]
10.

2 is a root of \[\mathbf{k}{{\mathbf{x}}^{\mathbf{4}}}-\mathbf{13}{{\mathbf{x}}^{\mathbf{3}}}+\mathbf{k}{{\mathbf{x}}^{\mathbf{2}}}+\mathbf{12x}.\]What is the value of k?

A.  \[k=1\]                        
B.  \[k=2\]         
C.  \[k=3\]                        
D.  \[k=4\]
Answer» E.
11.

Length, breadth and height of a cuboidal tank are \[(x-3y)m,\,(x+3y)m\]and\[({{x}^{2}}+9{{y}^{2}})m\]  respectively. Find the volume of the tank.

A. \[({{x}^{3}}+3xy+27{{y}^{3}}){{m}^{3}}\]
B. \[({{x}^{4}}+2{{x}^{2}}{{y}^{2}}+81{{y}^{4}}){{m}^{3}}\]
C. \[({{x}^{2}}-81{{y}^{4}}){{m}^{3}}\] 
D. \[({{x}^{4}}+81{{y}^{4}}){{m}^{3}}\]
Answer» D. \[({{x}^{4}}+81{{y}^{4}}){{m}^{3}}\]
12.

Resolve into factors: \[6{{x}^{3}}-24x{{y}^{2}}-4{{x}^{2}}y+12{{y}^{3}}\]

A.  \[3(2x-y)(x-2y)(x+y)\]
B.  \[3(2x-y)(x+y)(x+2y)\]
C.  \[3(2x-y)(x+2y)(x-2y)\]
D.  \[3(2x+y)(x-y)(x+2y)\]
Answer» B.  \[3(2x-y)(x+y)(x+2y)\]
13.

If a, b, c are all non-zeroes and \[a+b+c=0,\]then \[\frac{{{a}^{2}}}{bc}+\frac{{{b}^{2}}}{ca}+\frac{{{c}^{2}}}{ab}=\_\_\_\_\_.\]

A.  0                    
B.         1                    
C.  2                                
D.  3
Answer» E.
14.

If\[a+b+c=0\], evaluate\[\frac{{{a}^{2}}}{bc}+\frac{{{b}^{2}}}{ca}+\frac{{{c}^{2}}}{ab}\].

A.  \[1\]               
B.         \[2\]                
C.  \[3\]                
D.         \[4\]
Answer» D.         \[4\]
15.

What is the remainder when \[\mathbf{2}{{\mathbf{x}}^{\mathbf{2}}}-\mathbf{3x}+\mathbf{5}\] is divided by\[\mathbf{2x}-1\]?

A.  2                    
B.  3               
C.  4  
D.  5
Answer» D.  5
16.

If \[{{x}^{2}}-1\]is a factor of \[a{{x}^{4}}+b{{x}^{3}}+e{{x}^{2}}+dx+e,\] then

A. \[a+b+e=c+d\]
B. \[a+b+c=d+e\]
C. \[b+c+d=a+e\]
D.  None of these
Answer» E.
17.

If\[x+y+z=0\], what is the value of\[{{x}^{3}}+{{y}^{3}}+{{z}^{3}}\]?

A. \[xyz\]              
B.        \[2xyz\] 
C. \[3xyz\]             
D.        \[0\]                 
Answer» D.        \[0\]                 
18.

The degree of the polynomial \[\frac{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+}{{\mathbf{x}}^{\mathbf{5}}}\mathbf{-}{{\mathbf{x}}^{\mathbf{8}}}}{{{\mathbf{x}}^{\mathbf{3}}}}\] is

A.  2                    
B.  3             
C.  4                                
D.  5
Answer» E.
19.

Identify one of the factors of\[{{x}^{12}}-{{y}^{12}}\].

A. \[({{x}^{2}}-xy+{{y}^{2}})\]           
B. \[({{x}^{4}}+{{x}^{2}}{{y}^{2}}+{{y}^{4}})\]
C.        \[({{x}^{2}}+xy-{{y}^{2}})\]
D.        \[({{x}^{4}}-xy+{{y}^{4}})\]
Answer» B. \[({{x}^{4}}+{{x}^{2}}{{y}^{2}}+{{y}^{4}})\]
20.

If \[\mathbf{x}=\mathbf{999}\], then the value of \[\sqrt[\mathbf{3}]{\mathbf{x}\left( {{\mathbf{x}}^{\mathbf{2}}}\mathbf{+3x+3} \right)\mathbf{+1}}\]is

A.  1000
B.  999
C.  998                             
D.  1002
Answer» B.  999
21.

When \[({{x}^{3}}-2{{x}^{2}}+px-q)\] is divided by \[({{x}^{2}}-2x-3),\]the remainder is\[(x-6).\]The values of p and q respectively are

A.  -2,-6                            
B.  2,-6                 
C.  -2, 6                
D.         2, 6                 
Answer» D.         2, 6                 
22.

If \[\mathbf{x+y+z=6}\], then the value of \[{{\left( \mathbf{x-1} \right)}^{\mathbf{3}}}\mathbf{+}{{\left( \mathbf{y-2} \right)}^{\mathbf{3}}}\mathbf{+}{{\left( \mathbf{z-3} \right)}^{\mathbf{3}}}\] is

A.  \[3\left( x-1 \right)\left( y+2 \right)\left( z-3 \right)\]           
B.  \[3\left( x+1 \right)\left( y-2 \right)\left( z-3 \right)\]
C.  \[3\left( x-1 \right)\left( y-2 \right)\left( z+3 \right)\]           
D.  \[3\left( x-1 \right)\left( y-2 \right)\left( z-3 \right)\]
Answer» E.
23.

Value of R, if \[\frac{{{a}^{2}}-19a-25}{a-7}=a-12+\frac{R}{a-7}\]is _____.

A.  -109                            
B.  -88                  
C.  -84                  
D.         -64
Answer» B.  -88                  
24.

What are the factors of \[{{x}^{2}}+(a+b+c)x+ab+bc\]?

A. \[(x+a)(x+b+c)\]          
B. \[(x+a)(x+a+c)\]
C.        \[(x+b)(x+a+c)\]
D.        \[(x+b)(x+b+c)\]          
Answer» D.        \[(x+b)(x+b+c)\]          
25.

The value of \[{{(x-a)}^{3}}+{{(x-b)}^{3}}+{{(x-c)}^{3}}\]\[-3(x-a)(x-b)(x-c),\]when \[a+b+c=3x\]is ______.

A.  3                                
B.  2        
C.  1                    
D.         0
Answer» E.
26.

If\[\frac{x}{y}+\frac{y}{x}=-1(x,\,\,y\ne 0)\], what is the value of\[{{x}^{3}}-{{y}^{3}}\]?

A.  \[1\]                            
B.  \[-1\]               
C.  \[\frac{1}{2}\]             
D.         \[0\]    
Answer» E.
27.

If \[\mathbf{x=(}\sqrt{\mathbf{2}}\mathbf{+1}{{\mathbf{)}}^{\mathbf{-}\frac{\mathbf{1}}{\mathbf{3}}}}\]the value of \[\left( {{\mathbf{x}}^{\mathbf{3}}}\frac{\mathbf{1}}{{{\mathbf{x}}^{\mathbf{3}}}} \right)\]  is

A.  0                                
B.  \[-\sqrt{2}\]
C.  \[2\sqrt{2}\]
D.  \[3\sqrt{2}\]
Answer» D.  \[3\sqrt{2}\]
28.

The value of k for which \[(x+2)\] is a factor of (x \[{{(x+1)}^{7}}+{{(3x+k)}^{3}}\] is ____.

A.  -7                               
B.  7                    
C.  -1                   
D.        \[-6-{{3}^{(7/3)}}\]                 
Answer» C.  -1                   
29.

Write the degree of the polynomial 0.

A. \[1\]                            
B. \[0\]                
C. \[N\]                
D. Not defined                  
Answer» E.
30.

In a test paper there are total 10 questions. In how many different ways can you choose 6 questions to answer?

A. 210    
B.         540
C. 336                     
D.        340
E. None of these
Answer» B.         540
31.

Find the number of ways of selecting 4 letters from the word EXAMINATION.

A. 136    
B.         126
C. 252                     
D.        525
E. None of these
Answer» B.         126
32.

A committee of 5 persons is to be formed out of 6 gents and 4 ladies. In how many ways this can be done, when at most two ladies are included?

A. 186     
B.         168
C. 136                     
D.        169
E. None of these
Answer» B.         168
33.

In how many ways three different rings can be in four fingers with at most in each finger?

A. 24 
B.                                12
C. 36                    
D.          120
E. None of these
Answer» B.                                12
34.

The denominator of \[\frac{a+\sqrt{{{a}^{2}}-{{b}^{2}}}}{a-\sqrt{{{a}^{2}}-{{b}^{2}}}}+\frac{a-\sqrt{{{a}^{2}}-{{b}^{2}}}}{a+\sqrt{{{a}^{2}}-{{b}^{2}}}}\]is ______.

A. \[{{a}^{2}}\]                          
B.  \[{{b}^{2}}\]
C. \[{{a}^{2}}-{{b}^{2}}\]        
D.  \[\frac{4{{a}^{2}}-2{{b}^{2}}}{{{b}^{2}}}\]
Answer» C. \[{{a}^{2}}-{{b}^{2}}\]        
35.

What is the rational denominator of\[\frac{2\sqrt[3]{5}}{\sqrt[3]{9}}\]?

A. \[1\]                             
B. \[2\]     
C. \[3\]                 
D.        \[4\]
Answer» D.        \[4\]
36.

An irrational number between \[\frac{1}{7}\]and \[\frac{2}{7}\] is _____.

A.  \[\frac{1}{2}\left( \frac{1}{7}+\frac{2}{7} \right)\]                     
B.  \[\left( \frac{1}{7}\times \frac{2}{7} \right)\]       
C.  \[\sqrt{\frac{1}{7}\times \frac{2}{7}}\]         
D.         None of these
Answer» D.         None of these
37.

What is the rationalizing factor of\[\sqrt[5]{{{a}^{2}}{{b}^{3}}{{c}^{4}}}\]?

A. \[\sqrt[5]{{{a}^{3}}{{b}^{2}}c}\]      
B.        \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]      
C.        \[\sqrt[3]{{{a}^{3}}{{b}^{2}}c}\]      
D.        \[\sqrt{{{a}^{3}}{{b}^{2}}c}\]
Answer» B.        \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]      
38.

Rational number \[\frac{-18}{5}\] lies between consecutive integers ____.

A.  -2 and-3                      
B.  -3 and-4
C.  -4 and -5 
D.  -5 and -6
Answer» C.  -4 and -5 
39.

What is the rationalizing factor of\[\left( 2\sqrt[3]{5} \right)\]?

A. \[\sqrt[3]{5}\]                            
B. \[\sqrt[3]{{{5}^{2}}}\] 
C. \[{{5}^{2}}\]              
D.        \[{{5}^{3}}\]              
Answer» C. \[{{5}^{2}}\]              
40.

The rationalizing factor of\[\sqrt[5]{{{a}^{2}}{{b}^{3}}{{c}^{4}}}\]is ______.

A. \[\sqrt[5]{{{a}^{3}}{{b}^{2}}c}\]                  
B.  \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]     
C.  \[\sqrt[3]{{{a}^{3}}{{b}^{2}}c}\]     
D.        \[\sqrt{{{a}^{3}}{{b}^{2}}c}\]          
Answer» B.  \[\sqrt[4]{{{a}^{3}}{{b}^{2}}c}\]     
41.

\[\frac{7\sqrt{3}}{(\sqrt{10}+\sqrt{3})}-\frac{2\sqrt{5}}{(\sqrt{6}+\sqrt{5})}-\frac{3\sqrt{2}}{(\sqrt{15}+3\sqrt{2})}=\_\_\_\_\_.\]

A.  1                                
B.  2        
C.  \[\frac{1}{2}\]             
D.         3        
Answer» B.  2        
42.

What type of a number is\[{{\left( \sqrt{2}+\sqrt{3} \right)}^{2}}\]?

A.  A rational number
B.  An irrational number
C.  A fraction
D.  A decimal number
Answer» C.  A fraction
43.

Find the simplest rationalising factor of\[{{5}^{1/3}}+{{5}^{-1/3}}\]

A. \[{{5}^{2/3}}+1+{{5}^{-2/3}}\]       
B. \[{{5}^{1/3}}-{{5}^{-1/3}}\] 
C.        \[{{5}^{2/3}}-1+{{5}^{-2/3}}\]         
D.        \[{{5}^{2/3}}+1-{{5}^{-2/3}}\]                     
Answer» D.        \[{{5}^{2/3}}+1-{{5}^{-2/3}}\]                     
44.

If\[x=\sqrt[3]{2+\sqrt{3}}\], find the value of\[{{x}^{3}}+\frac{1}{{{x}^{3}}}\].

A.  \[2\]                
B.         \[4\]                
C.  \[8\]                
D.         \[9\]                            
Answer» C.  \[8\]                
45.

Find the value of \[0.9999.......\] in the form of\[\frac{p}{q}\](\[p,\,\,q\in Z\]and\[q\ne 0\])

A. \[\frac{1}{9}\]              
B.        \[\frac{2}{9}\]  
C. \[\frac{9}{10}\]             
D. \[1\]                 
Answer» E.
46.

Simplify\[\frac{{{a}^{\frac{1}{2}}}+{{a}^{-\frac{1}{2}}}}{1-a}+\frac{1-{{a}^{-\frac{1}{2}}}}{1+\sqrt{a}}\].

A.  \[1\]                
B.         \[0\]    
C.  \[\frac{2}{1-a}\]           
D.         \[1+a\]
Answer» D.         \[1+a\]
47.

Which symbol is used to denote a collection of all positive integers?

A.  \[N\]                
B.         \[W\]               
C.         \[Z\]                            
D.  \[Q\]                
Answer» B.         \[W\]               
48.

If\[{{x}^{x\sqrt{x}}}={{\left( x\sqrt{x} \right)}^{x}}\], find the value of\[x\].

A. \[\frac{3}{2}\]                          
B. \[\frac{2}{9}\]              
C. \[\frac{9}{4}\]                          
D. \[\frac{4}{9}\]
Answer» D. \[\frac{4}{9}\]
49.

If \[x=(7+4\sqrt{3}),\]then \[\left( x+\frac{1}{x} \right)=\_\_\_\_\_.\]

A. \[8\sqrt{3}\]                              
B.  14       
C.  49                   
D.         48       
Answer» C.  49                   
50.

What type of a number is\[\left( 6+\sqrt{2} \right)\left( 6-\sqrt{2} \right)\]?

A.  Rational number           
B.  Irrational number
C.         Prime number
D.         Negative Integer
Answer» B.  Irrational number