Explore topic-wise MCQs in 7th Class.

This section includes 2154 Mcqs, each offering curated multiple-choice questions to sharpen your 7th Class knowledge and support exam preparation. Choose a topic below to get started.

1151.

What are fractions with different denominators called?

A.  Like                      
B.         Unlike  
C.  Proper                
D.         Improper
Answer» C.  Proper                
1152.

Rakesh had some amla candies. He gave two third of the total candies to Rajan. One fifth to Sumitra and the remaining candies were given to Prasad. If Rakesh had 90 candies, then how many candies were given to Prasad?

A.  9                                
B.  13           
C.  14                               
D.  12
Answer» E.
1153.

What should be added to \[\frac{21}{27}\] to make it \[\frac{26}{27}\]?

A.  \[\frac{26}{27}\]                             
B.          \[\frac{6}{27}\]
C.  \[\frac{5}{27}\]                 
D.         \[\frac{7}{27}\]
Answer» D.         \[\frac{7}{27}\]
1154.

What is the value of the expression \[\left[ \frac{14}{3}\left( 2\frac{3}{7}-3\frac{1}{6}+1\frac{2}{3} \right) \right]\]?

A.  \[1\frac{1}{2}\]                        
B.  \[2\frac{1}{3}\]
C.  \[3\frac{1}{3}\]                                    
D.  \[4\frac{1}{3}\]
Answer» E.
1155.

Examine the containers below. Which container holds \[\frac{1}{8}\] litre of liquid?

A.  Tea Cup                      
B.  Cereal Bowl   
C.  Drinking Glass  
D.  Lemonade Pitcher
Answer» B.  Cereal Bowl   
1156.

Manav took 4 minutes to complete a race comprising three rounds. The time taken to complete the first and the second round is \[\frac{3}{4}\] min and \[1\frac{1}{2}\] min respectively. How much time was taken by Manav to complete the last round?

A. \[2\frac{1}{2}\] min                  
B.  \[3\frac{1}{3}\] min
C.  \[1\frac{3}{4}\]min      
D.  None of these
Answer» D.  None of these
1157.

Which of the following will make the given expression TRUE? \[\left[ \frac{7}{3}-\frac{2}{6} \right]-\frac{1}{2}+\left[ \frac{4}{5}\div \frac{6}{8} \right]+\frac{3}{4}\ \]             \[\frac{4}{5}\div \left[ \frac{6}{8}+\frac{3}{4} \right]-\left[ \frac{3}{4}+\frac{5}{6} \right]+3\frac{1}{3}\]

A.  >                           
B.  <                   
C.         =                     
D.        Can't be determined               
Answer» B.  <                   
1158.

What is the product of a fractional number and its reciprocal?

A.  \[0\]           
B.  same number
C.  \[1\]            
D.  undefined
Answer» D.  undefined
1159.

In the above example, how many students prefer neither hockey nor cricket?

A.  60                               
B.  50
C.  40                               
D.  30
Answer» E.
1160.

Among 240 students, it was found that three - fourth of the students preferred to play hockey and one-eighth of the students preferred to play cricket. The number of students whole prefer to play hockey and cricket respectively are

A.  180 and 30      
B.  40 and 180     
C.  180 and 40                  
D.  None of these
Answer» B.  40 and 180     
1161.

Find the perimeter of: (i) \[\Delta ABC\]                              (ii) rectangle BCDE                        

A. (i) (ii) \[8\frac{1}{60}cm\] \[5\,cm\]                
B. (i) (ii)  \[5\,cm\] \[10\frac{1}{6}cm\]                
C. (i) (ii) \[8\frac{1}{60}\,cm\] \[10\frac{1}{5}\,cm\]                
D. (i) (ii)  \[8\,cm\] \[23\,cm\]
Answer» D. (i) (ii)  \[8\,cm\] \[23\,cm\]
1162.

Which of the following is true with respect to \[\frac{9}{16}\] and \[\frac{13}{5}\]?

A.  \[\frac{9}{16}>\frac{13}{5}\]
B.  \[\frac{9}{16}=\frac{13}{5}\]
C.  \[\frac{9}{16}<\frac{13}{5}\]  
D.  \[\frac{13}{5}<\frac{9}{16}\]
Answer» D.  \[\frac{13}{5}<\frac{9}{16}\]
1163.

If\[\mathbf{~}{{\mathbf{2}}^{\mathbf{2002}}}\mathbf{- }{{\mathbf{2}}^{\mathbf{1996}}}\mathbf{- }{{\mathbf{2}}^{\mathbf{1992}}}\mathbf{+ }{{\mathbf{2}}^{\mathbf{1991}}}\mathbf{= K}\mathbf{.}{{\mathbf{2}}^{\mathbf{1991}}}\], then the value of K is ________.

A. 2012
B.  4024
C.  2015
D.  4012
E.  None of these
Answer» D.  4012
1164.

Find the value of K, where K is an integer and \[{{\mathbf{2}}^{\mathbf{K+5}}}\mathbf{\times }{{\mathbf{6}}^{\mathbf{2K-3}}}\mathbf{=}\frac{{{\mathbf{3}}^{\mathbf{-8}}}}{\mathbf{1}{{\mathbf{2}}^{\mathbf{6}}}\mathbf{\times }{{\mathbf{2}}^{\mathbf{3}}}}\]

A. -5
B.  -6
C.  5
D. -8
E.  None of these
Answer» C.  5
1165.

Which one among the following is the largest? \[{{\mathbf{3}}^{\mathbf{1/12}}}\mathbf{,}\,{{\mathbf{6}}^{\mathbf{1/6}}}\mathbf{,}\,{{\mathbf{9}}^{\mathbf{1/4}}}\mathbf{,}\,{{\mathbf{2}}^{\mathbf{1/16}}}\mathbf{,}\,{{\mathbf{5}}^{\mathbf{1/6}}}\]  

A. \[{{3}^{1/12}}\]         
B.  \[{{6}^{1/6}}\]
C.  \[{{9}^{1/4}}\]
D.  \[{{2}^{1/16}}\]
E.  None of these
Answer» D.  \[{{2}^{1/16}}\]
1166.

Which one among the following is wrong statement?

A. \[{{a}^{m}}+{{a}^{m}}=\text{ }{{a}^{2}}^{m}\], where a is a non-zero rational number and m is a positive integer.
B. \[{{a}^{p}}\text{ }\times \text{ }{{a}^{q}}=\text{ }{{a}^{pq}}\], where p, q are positive integer.
C. \[{{4}^{6}}\] is greater than \[~{{8}^{5}}\]
D.  \[{{2}^{n}}>\text{ }{{n}^{2}}\], where n is a natural number greater than 2.
E.  None of these
Answer» E.  None of these
1167.

Simplify: \[\frac{\sqrt{\mathbf{216}}\mathbf{+}\sqrt{\mathbf{96}}}{\sqrt{\mathbf{5}{{\mathbf{0}}^{\mathbf{2}}}\mathbf{-1}{{\mathbf{0}}^{\mathbf{2}}}}}\]

A.
B.  \[\frac{1}{4}\] 
C.  \[\frac{1}{2}\]
D.  2
E. None of these
Answer» D.  2
1168.

Which one among the following is correct?

A. \[{{\left( 5+5 \right)}^{5}}={{5}^{5}}+{{5}^{5}}\]
B.  \[{{3}^{5}}>{{5}^{3}}\]
C.  one billion \[=\text{ }{{10}^{9}}\]
D.  one hour = 3600 minutes
E.  None of these
Answer» D.  one hour = 3600 minutes
1169.

If \[\mathbf{5000 > }{{\mathbf{x}}^{\mathbf{4}}}\]then the greatest possible integer value of x is _________.

A.
B.  6
C.  7        
D.  8
E.  None of these
Answer» E.  None of these
1170.

If \[{{\mathbf{4}}^{\mathbf{-2X}}}\mathbf{=}\frac{\mathbf{1}}{\mathbf{4096}}\,\,\mathbf{and}\,\,\mathbf{1}{{\mathbf{1}}^{\mathbf{y}}}\mathbf{=}\frac{\mathbf{1}}{\mathbf{1331}}\] then find the value of\[\mathbf{x}\text{ }-\text{ }\mathbf{y}\].

A. 0         
B.  1   
C.  3        
D.  6
E. None of these
Answer» E. None of these
1171.

Choose the correct descending order for the following:\[{{4}^{5+6}},{{({{4}^{5}})}^{6}},{{4}^{8}}\times {{4}^{4}},\frac{{{4}^{6}}}{{{4}^{-7}}},{{4}^{10}}\times {{4}^{0}}\]. 

A. \[{{\left( {{4}^{5}} \right)}^{6}}>\text{ }{{4}^{8}}\times {{4}^{4}}>\frac{{{4}^{6}}}{{{4}^{-7}}}>{{4}^{5+6}}>{{4}^{10}}\times {{4}^{0}}\]
B. \[{{({{4}^{5}})}^{6}}>\frac{{{4}^{6}}}{{{4}^{-7}}}>{{4}^{8}}\times {{4}^{4}}>{{4}^{5+6}}>{{4}^{10}}\times {{4}^{0}}\]
C.  \[{{4}^{8}}\times \,{{4}^{4}}>{{({{4}^{5}})}^{6}}>\frac{{{4}^{6}}}{{{4}^{-7}}}>\text{ }{{4}^{10}}\times {{4}^{0}}>{{4}^{5+6}}\]
D. \[{{4}^{8}}\times {{4}^{4}}<{{({{4}^{5}})}^{6}}<\frac{{{4}^{6}}}{{{4}^{-7}}}<{{4}^{10}}\times {{4}^{0}}<{{4}^{5+6}}\]
E. None of these
Answer» C.  \[{{4}^{8}}\times \,{{4}^{4}}>{{({{4}^{5}})}^{6}}>\frac{{{4}^{6}}}{{{4}^{-7}}}>\text{ }{{4}^{10}}\times {{4}^{0}}>{{4}^{5+6}}\]
1172.

If \[{{\mathbf{a}}^{\mathbf{b}}}^{^{\mathbf{c}}}\mathbf{= 6561}\], where a, b and c are positive integers, then find the minimum possible value of \[\mathbf{a}\text{ }+\text{ }\mathbf{b}\text{ }+\text{ }\mathbf{c}\].

A. 6
B.  11
C.   8 
D.  9
E. None of these
Answer» D.  9
1173.

By what number should \[{{\left( -8 \right)}^{-9}}\text{ }\] be divided so that the quotient may be equal to\[{{\left( -\text{ }8 \right)}^{-6}}\]?

A. \[{{8}^{3}}\]  
B. \[~{{\left( -8 \right)}^{-3}}\]
C. \[~{{\left( -8 \right)}^{3}}\]
D. \[~{{8}^{-3}}\]
E.  None of these
Answer» C. \[~{{\left( -8 \right)}^{3}}\]
1174.

If\[{{\mathbf{3}}^{\mathbf{8}}}{{^{\mathbf{x}}}^{\mathbf{-}}}^{\mathbf{32}}\mathbf{= }{{\mathbf{4}}^{\mathbf{28}}}^{\mathbf{-7x}}\], then find the value of x.

A.  2         
B.  3
C.  4
D.  6
E.  None of these
Answer» D.  6
1175.

Solve: \[{{\mathbf{(}\sqrt{\mathbf{260}}\mathbf{-}\sqrt{\mathbf{64}}\mathbf{)}}^{\mathbf{3/2}}}\,{{\mathbf{(}\sqrt{\mathbf{260}}\mathbf{+}\sqrt{\mathbf{64}}\mathbf{)}}^{\mathbf{3/2}}}\]

A. 2343
B.  2744
C.  1834
D.  2656
E.  None of these
Answer» C.  1834
1176.

The standard form of the number 56789 is _________.

A. 5.6789 x 103 
B.  56.789 x 103
C.  5.6789 x 104  
D.  5678.9 x 10
E.  None of these
Answer» D.  5678.9 x 10
1177.

If \[{{\mathbf{p}}^{\mathbf{q}}}\mathbf{ x }{{\mathbf{q}}^{\mathbf{p}}}\mathbf{ = 30375}\], then find the value of \[\mathbf{3p}\text{ }+\text{ }\mathbf{2q}\] (where, p and q are natural numbers greater than 1).

A. 19        
B.  21
C.  23
D.  24
E.  None of these
Answer» B.  21
1178.

If \[{{\mathbf{2}}^{\mathbf{m-7}}}=\text{ }\mathbf{32}\], then find the value of \[{{\mathbf{2}}^{\mathbf{m-3}}}\].

A. 256
B.  512
C.  1024
D.  2048
E. None of these
Answer» C.  1024
1179.

\[{{\left( \mathbf{0}.\mathbf{0256} \right)}^{\mathbf{1/4}}}\]  =__________.

A. 0.4
B.  0.04 
C.  0.02 
D.  0.2
E.  None of these
Answer» B.  0.04 
1180.

Which one among the following is the greatest?\[{{5}^{-4}},\text{ }{{2}^{-4}},\text{ }{{3}^{-4}},\text{ }{{4}^{-4}},\text{ }{{6}^{-4}}\] 

A. \[{{5}^{-4}}~\]
B. \[{{6}^{-4}}\]
C. \[~{{2}^{-4}}~\] 
D. \[~{{4}^{-\,4\text{ }~}}\]
E.  None of these
Answer» D. \[~{{4}^{-\,4\text{ }~}}\]
1181.

If \[\mathbf{3600 = }{{\mathbf{2}}^{\mathbf{m}}}\,\mathbf{x }{{\mathbf{3}}^{\mathbf{n}}}\mathbf{ x}\,{{\mathbf{5}}^{\mathbf{p}}}\], then find the value of \[\frac{\mathbf{512}}{{{\mathbf{(16)}}^{\mathbf{(m+n)-p}}}}\]

A. \[{{2}^{-7}}\]
B. \[~{{2}^{7}}\]
C. \[~{{2}^{8}}\]
D. \[~{{2}^{-8}}\]
E.  None of these
Answer» B. \[~{{2}^{7}}\]
1182.

Simplify: \[{{\left( \frac{\mathbf{512}}{\mathbf{125}} \right)}^{\mathbf{2/3}}}\mathbf{\div }{{\left( \frac{\mathbf{64}}{\mathbf{125}} \right)}^{\mathbf{1/3}}}\mathbf{\times }{{\left( \frac{\mathbf{125}}{\mathbf{8}} \right)}^{\mathbf{2/3}}}\]

A. 40
B.  20
C.  25
D.  45
E. None of these
Answer» B.  20
1183.

Evaluate: \[{{\left[ \mathbf{1}\text{ }+\text{ }\mathbf{8}\text{ }+\text{ }\mathbf{27}\text{ }+\text{ }\mathbf{64}\text{ }+\text{ }\mathbf{125}\text{ }+\text{ }\mathbf{216}\text{ }+\text{ }\mathbf{343} \right]}^{\mathbf{3/4}}}\]

A. \[34\sqrt{3}\]
B.  \[56\sqrt{7}\]
C.  \[28\sqrt{7}\]
D.  \[34\sqrt{7}\]
E.  None of these
Answer» C.  \[28\sqrt{7}\]
1184.

Which among the following is not equal to 1?

A. \[\frac{{{2}^{8}}\times 32}{8\times 1024}\]
B.  \[[{{(-2)}^{6}}\times {{2}^{-4}}]\div \frac{{{(-2)}^{8}}}{64}\]
C.  \[\frac{{{3}^{-1/3}}}{81}\times \frac{{{3}^{-11/3}}}{{{3}^{-8}}}\] 
D.  \[\frac{{{3}^{-5/4}}\times {{3}^{-15/4}}}{{{(2+7)}^{-2}}}\]
E.  None of these
Answer» E.  None of these
1185.

A teacher distributes 2209 toffees equally among n number students. If each student gets n toffees, find n.

A. 37
B.  27
C.  47
D.  57
E.  None of these
Answer» D.  57
1186.

If \[{{\mathbf{4}}^{\mathbf{x}}}\mathbf{ = }{{\mathbf{2}}^{\mathbf{y}}}\mathbf{ = 1}{{\mathbf{6}}^{\mathbf{z}}}\mathbf{= 256}\], then find the value of \[{{\mathbf{x}}^{\mathbf{2}}}+\text{ }{{\mathbf{y}}^{\mathbf{2}}}+\text{ }{{\mathbf{z}}^{\mathbf{2}}}+\text{ }\mathbf{2xy}\text{ }+\text{ }\mathbf{2yz}\text{ }+\text{ }\mathbf{2zx}.\]

A. 120 
B.  196
C.  186     
D.  190
E.  None of these
Answer» C.  186     
1187.

If \[{{\left( \frac{\mathbf{m}}{\mathbf{n}} \right)}^{\mathbf{3/8}}}\mathbf{+}{{\left( \frac{\mathbf{n}}{\mathbf{m}} \right)}^{\mathbf{3/8}}}\mathbf{=9}\] then find the value of \[\,{{\left( \frac{\mathbf{m}}{\mathbf{n}} \right)}^{\mathbf{3/4}}}\mathbf{+}{{\left( \frac{\mathbf{n}}{\mathbf{m}} \right)}^{\mathbf{3/4}}}\].

A. 79        
B.  72
C.  83
D.  84
E.  None of these
Answer» B.  72
1188.

What should be multiplied to \[{{3}^{-9}}\] so that the product may be equal to 2187?

A. \[{{3}^{15}}\]
B. \[{{3}^{16}}\]
C. \[{{3}^{14}}\]
D. \[{{3}^{13}}\]
E.  None of these
Answer» C. \[{{3}^{14}}\]
1189.

If \[{{\mathbf{a}}^{\mathbf{2}}}+\text{ }{{\mathbf{b}}^{\mathbf{2}}}+\text{ }{{\mathbf{c}}^{\mathbf{2}}}=\text{ }\mathbf{4abc}\], then find the value of \[{{\left[ {{\mathbf{4}}^{\frac{\mathbf{1}}{\mathbf{bc}}}} \right]}^{\mathbf{a}}}{{\left[ {{\mathbf{4}}^{\frac{\mathbf{1}}{\mathbf{ac}}}} \right]}^{\mathbf{b}}}{{\left[ {{\mathbf{4}}^{\frac{\mathbf{1}}{\mathbf{ab}}}} \right]}^{\mathbf{c}}}\] .

A. 5 abc
B.  4abc   
C.  64
D.  256
E.  None of these
Answer» E.  None of these
1190.

\[{{\left( \frac{{{\mathbf{x}}^{\mathbf{-3}}}}{{{\mathbf{y}}^{\mathbf{3}}}} \right)}^{\mathbf{2/3}}}\mathbf{\times }{{\left( \frac{{{\mathbf{x}}^{\mathbf{3}}}}{{{\mathbf{y}}^{\mathbf{-3}}}} \right)}^{\mathbf{2/3}}}\]is equal to            

A. \[\frac{{{x}^{4}}}{{{y}^{-4}}}\]
B.  \[\frac{{{y}^{4}}}{{{x}^{-4}}}\]
C.  \[\frac{{{x}^{-}}^{4}}{{{y}^{4}}}\]
D.  \[\frac{1}{{{x}^{2}}{{y}^{2}}}\]
E. None of these
Answer» D.  \[\frac{1}{{{x}^{2}}{{y}^{2}}}\]
1191.

If \[{{\left( \frac{5}{9} \right)}^{4}}\times {{\left( \frac{5}{9} \right)}^{-10}}={{\left( \frac{5}{9} \right)}^{-4}}{{\left( \frac{5}{9} \right)}^{2a-1}},\]then the value of a is _____.

A.  1                                
B.  \[\frac{-5}{2}\]                     
C.  \[\frac{-5}{4}\]                     
D.         \[\frac{-1}{2}\]                     
Answer» E.
1192.

\[{{(-11)}^{2}}\times {{(-11)}^{4}}={{(-11)}^{x}}.\]What is the value of x?

A.  \[2\]                                    
B.  \[4\]
C.  \[6\]                                      
D.  \[-2\]
Answer» D.  \[-2\]
1193.

\[{{\left\{ {{\left( \frac{3}{4} \right)}^{-1}}-{{\left( \frac{1}{4} \right)}^{-1}} \right\}}^{-1}}=?\]

A.  \[\frac{3}{8}\]                                   
B.  \[\frac{-3}{8}\]                     
C.  \[\frac{8}{3}\]                       
D.  \[\frac{-8}{3}\]                                 
Answer» C.  \[\frac{8}{3}\]                       
1194.

Which of the following is the least? \[{{(-1)}^{3}},\,{{(-10)}^{3}},{{(1)}^{5}}\] and \[{{(-1)}^{4}}\]

A.  \[{{1}^{5}}\]                                     
B.  \[{{(-10)}^{3}}\]  
C.  \[{{(-1)}^{4}}\]                                
D.  \[{{(-1)}^{3}}\]
Answer» C.  \[{{(-1)}^{4}}\]                                
1195.

The value of \[\left( \frac{{{a}^{-2}}\times {{b}^{-3}}}{{{a}^{-3}}\times {{b}^{-4}}} \right)\] is ________.

A.  \[{{a}^{-1}}\times b\]                    
B.  \[a\times {{b}^{-1}}\]        
C.         \[{{(ab)}^{-1}}\]           
D.         \[ab\]              
Answer» E.
1196.

What is the value of \[{{2}^{7}}\times {{5}^{3}}\]?

A.  \[7500\]                             
B.  \[16000\]  
C.  \[11200\]                           
D.  \[14000\]
Answer» C.  \[11200\]                           
1197.

Simplify \[\frac{{{64}^{2x}}\div {{16}^{x}}}{{{128}^{x}}\times {{4}^{2x}}}\].

A.  \[{{2}^{-3x}}\]                   
B.         \[{{2}^{8x}}\]
C.  \[{{2}^{3x}}\]                   
D.         \[{{2}^{11x}}\]
Answer» B.         \[{{2}^{8x}}\]
1198.

The value of \[(-8)\times (-8)\times (-8)\times (-8)+(-8)\]\[\times (-8)\times (-8)\times (-8)\] is ____.                         

A.  \[-2{{(8)}^{5}}\]                
B.  \[-{{(2)}^{16}}\]    
C.         \[-{{(4)}^{8}}\]           
D.         All of these                 
Answer» E.
1199.

What is the value of \[(12\times {{3}^{0}}-8\times {{5}^{0}})\]?

A.  \[\frac{1}{2}\]                  
B.         \[2\]
C.  \[4\]                      
D.         \[\frac{1}{4}\]
Answer» D.         \[\frac{1}{4}\]
1200.

Solve \[{{({{9}^{5}})}^{x}}={{({{9}^{4}})}^{x}}\div {{9}^{2}}\].

A.  \[x=4\]               
B.         \[x=-2\]  
C.  \[x=-3\]              
D.         \[x=2\]
Answer» C.  \[x=-3\]