7th Class Mathematics Sample Paper

done Sample Paper - Maths - 1 Total Questions - 18    [Download]

• question_answer1)
  An algebraic expression containing three terms is called a
  A)
  monomial                   
  done clear
  B)
  binomial
  done clear
  C)
  trinomial         
  done clear
  D)
         All of these
  done clear
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• question_answer2)
  Number of terms in the expression \[3{{x}^{2}}y-2{{y}^{2}}z-{{z}^{2}}x+5\] is
  A)
  2                      
  done clear
  B)
                 3
  done clear
  C)
  4                      
  done clear
  D)
            5
  done clear
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• question_answer3)
  Factors of \[-5{{x}^{2}}{{y}^{2}}z\] are
  A)
  \[-\,5\times x \times  y \times  z\]
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  B)
                 \[-\,5\,\times {{x}^{2}}\times y\times z\]
  done clear
  C)
                 \[-\,5\times x\,\times x\times y\times y\times z\]
  done clear
  D)
                 \[-\,5\times x\times y\times {{z}^{2}}\]
  done clear
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• question_answer4)
  Which of the following is a pair of like terms?
  A)
  \[-\,7x{{y}^{2}}z, -7{{x}^{2}}yz\]           
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  B)
  \[-\,10\,xy{{z}^{2}}, 3xy{{z}^{2}}\]
  done clear
  C)
  \[3xyz,\,3{{x}^{2}}{{y}^{2}}{{z}^{2}}\]
  done clear
  D)
         \[4xy{{z}^{2}}, 4{{x}^{2}}yz\]
  done clear
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• question_answer5)
  The sum of \[{{\operatorname{x}}^{4}}-xy+2{{y}^{2}}\,\,and\,\,-{{x}^{4}}+xy+2{{y}^{2}}\] is
  A)
  monomial and polynomial in y           
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  B)
  binomial and polynomial
  done clear
  C)
  trinomial and polynomial                    
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  D)
  monomial and polynomial in x
  done clear
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• question_answer6)
  The subtraction of 5 times of y from x is
  A)
  \[5x-y\]            
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  B)
         \[\operatorname{y}\,-5x\]
  done clear
  C)
  \[\operatorname{x}\,-5y\]       
  done clear
  D)
         \[5y-x\]
  done clear
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• question_answer7)
  The value of \[3{{x}^{2}}- 5x +3\], when x = 1 is
  A)
  1         
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  B)
         0
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  C)
  -1                    
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  D)
         11
  done clear
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• question_answer8)
  The length of a side of square is given as 2x+3. Which expression represents the perimeter of the square?
  A)
  2x+16            
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  B)
         6x+9
  done clear
  C)
  8x+3  
  done clear
  D)
         8x+12
  done clear
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• question_answer9)
  If \[\left( {{x}^{2}}y+{{y}^{2}}+3 \right)\] is subtracted from \[\left( 3{{x}^{2}}y+2{{y}^{2}}+5 \right)\], then coefficient of y in the result is _______.
  A)
  \[\therefore  \,\,Coefficient of \,y =2{{x}^{2}}\]
  done clear
  B)
  \[\therefore  \,\,Coefficient of \,x=2{{y}^{2}}\]
  done clear
  C)
  \[\therefore  \,\,Coefficient of \,y=2x\]
  done clear
  D)
  \[Coefficient of \,x=2{{y}^{2}}\]
  done clear
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• question_answer10)
  Write the following statements in the form of algebraic expressions and write whether is monomial, binomial or trinomial. x is multiplied by itself and then added to the product of x and y.
  A)
  \[{{x}^{2}}+xy\]                             [binomial]
  done clear
  B)
         \[{{x}^{2}}+x\]                               [binomial]
  done clear
  C)
         \[{{x}^{2}}+yx\]                             [binomial]
  done clear
  D)
         \[{{y}^{2}}+yx\]                             [binomial]
  done clear
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• question_answer11)
  Write the following statements in the form of algebraic expressions and write whether is monomial, binomial or trinomial. Three times of p and two times of q are multiplied and then subtracted from r.
  A)
  \[\operatorname{r}\,-\,\,\left( 3p\times 2q \right)=r\,-6pq\]      [binomial]
  done clear
  B)
  \[\operatorname{r}\,-\,\,\left( 3p\times 2q \right)=r\,-8pq\]              [binomial]
  done clear
  C)
  \[\operatorname{r}\,-\,\,\left( 3p\times 2q \right)=r\,-7pq\]           [binomial]
  done clear
  D)
  \[\operatorname{r}\,-\,\,\left( 2p\times 2q \right)=r\,-7pq\]          [binomial]
  done clear
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• question_answer12)
  Write the following statements in the form of algebraic expressions and write whether is monomial, binomial or trinomial. Product of p, twice of q and thrice of r.
  A)
  \[\operatorname{p}\times 2q\times 3r = 6pq\]            [monomial]
  done clear
  B)
  \[\operatorname{p}\times 2q\times 3r = 8pq\] [monomial]
  done clear
  C)
  \[\operatorname{p}\times 3q\times 2r = 8pq\] [monomial]
  done clear
  D)
  \[\operatorname{p}\times 8q\times 2r = 6pq\] [monomial]
  done clear
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• question_answer13)
  Write the following statements in the form of algebraic expressions and write whether is monomial, binomial or trinomial. Sum of the products of a and b, b and c, c and a.
  A)
  \[\operatorname{ab}+bc+ca\]                       [trinomial]
  done clear
  B)
  \[\operatorname{ab}+bc+cb\]             [trinomial]
  done clear
  C)
  \[\operatorname{ab}+bc+cd\]             [trinomial]
  done clear
  D)
  \[ba+bc+cb\]               [trinomial]
  done clear
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• question_answer14)
  How much \[21{{a}^{3}}-17{{a}^{2}}\,\,less than \,89{{a}^{3}}-64{{a}^{2}}+6a\,\,+16?\]
  A)
  So, \[21{{a}^{3}}-17{{a}^{2}}\,\,is 68{{a}^{3}}-47{{a}^{2}}+6a+16 \,less than \,89{{a}^{3}}- 64{{a}^{2}}+ 6a+16.\]
  done clear
  B)
  So, \[89{{a}^{3}}- 64{{a}^{2}}+ 6a+16 \,less than \,21{{a}^{3}}-17{{a}^{2}}\,\,is 68{{a}^{3}}-47{{a}^{2}}+6a+16\]
  done clear
  C)
  All are correct
  done clear
  D)
  None of these
  done clear
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• question_answer15)
  How much is \[{{\operatorname{y}}^{4}}-12{{y}^{2}}+y+14\,\,greater than \,17{{y}^{3}}+34{{y}^{2}}-51y+68?\]
  A)
  So, \[{{\operatorname{y}}^{4}}-12{{y}^{2}}+ y+14 \,is \,{{y}^{4}}-17{{y}^{3}}-46{{y}^{2}}+ 52y- 54 \,greater than 17{{y}^{3}}+ 34{{y}^{2}}- 51y+ 68.\]
  done clear
  B)
  So, \[17{{y}^{3}}+ 34{{y}^{2}}- 51y+ 68 \,greater than {{\operatorname{y}}^{4}}-12{{y}^{2}}+ y+14 \,is \,{{y}^{4}}-17{{y}^{3}}-46{{y}^{2}}+ 52y- 54\]
  done clear
  C)
  All are correct
  done clear
  D)
  None of these
  done clear
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• question_answer16)
  If \[\operatorname{A}=3{{x}^{2}}-4x+1,\,\,B=5{{x}^{2}}+3x\,-8\,\,and\,\,C=4{{x}^{2}}-7x+3\], then find (i) \[\left( A+B \right)-C\]
  A)
  \[=4{{x}^{2}}+6x\,-10\]
  done clear
  B)
  \[=4{{x}^{2}}+6x\,-20\]
  done clear
  C)
  \[=4{{x}^{2}}+8x\,-20\]
  done clear
  D)
  \[=5{{x}^{2}}+8x\,-20\]
  done clear
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• question_answer17)
  From the sum of \[{{x}^{2}}-{{y}^{2}}-1, \,{{y}^{2}}-{{x}^{2}} and 1-{{x}^{2}}-{{y}^{2}}, \,subtract\,\,-\left( 1+{{y}^{2}} \right).\]
  A)
  \[=-{{x}^{2}}\]
  done clear
  B)
  \[={{x}^{2}}\]
  done clear
  C)
  All of these
  done clear
  D)
  None of these
  done clear
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• question_answer18)
  Subtract the sum of \[12ab\,-10{{b}^{2}}-18{{a}^{2}}\,and 9ab+12{{b}^{2}}+14{{a}^{2}}\] from the sum of \[\operatorname{ab}+2{{b}^{2}}\,and\,\,3{{b}^{2}}-{{a}^{2}}.\]
  A)
  \[= -20ab + 3{{b}^{2}}+ 3{{a}^{2}}= 3{{a}^{2}}+ 3{{b}^{2}}-20ab\]
  done clear
  B)
  \[= -20ab + 3{{b}^{2}}+ 3{{a}^{2}}= 3{{a}^{2}}+ 3{{b}^{2}}-30ab\]
  done clear
  C)
  All of these
  done clear
  D)
  None of these
  done clear
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