SSC Board Practice

SSC Grade X - Quadratic Equations
Question 1
1.
    • Solve :
    •  
       

      (
      5
      x
      2
       
      38
      x
      +
      48
      )
       = 
       
       
      (
      x
      6
      )
  • 1

    2



    3
    ,
    6



    3
  • 1

    2



    2
    ,
    6



    2
  • 1

    2
    ,
    6
  • 1

    2



    5
    ,
    6



    5
  • 1

    2



    4
    ,
    6



    4
Question 2
2.
    • Find the discriminant of the quadratic equation
    • (
      x
      2
       
      2
      x
      +
      1
      )
      =
      0
  • -2
  • -1
  • 3
  • 0
  • 1
Question 3
3.
    • Find the roots of the quadratic equation
    • (
      81
      x
      2
       
      16
      )
      =
      0
  • (
    4

    11
    ,
    (
    -4

    7
    )
    )
  • (
    4

    11
    ,
    (
    -4

    9
    )
    )
  • (
    2

    3
    ,
    (
    -4

    7
    )
    )
  • (
    2

    3
    ,
    (
    -2

    3
    )
    )
  • (
    4

    9
    ,
    (
    -4

    9
    )
    )
Question 4
4.
    • The denominator of a fraction exceeds the numerator by
    • 3
    • .
    • The square of the fraction is equal to
    • 100

      169
    • . Find the fraction
  • 10

    11
  • 10

    13
  • 8

    13
  • 2

    3
  • 12

    13
Question 5
5.
    • Solve :
    •  
       
      (
      x
      2
       
      2
      x
      )
      2
         
       
       
      13
      (
      x
      2
       
      2
      x
      )
        +  
       
       
      42
      =
      0
      • (
        2
        +
        2



        2
        )
      • ,
      • (
        1
        2



        2
        )
      • ,
      • (
        2
        +



        7
        )
      • ,
      • (
        2



        7
        )
      • (
        1
        +
        2



        2
        )
      • ,
      • (
        1
        2



        2
        )
      • ,
      • (
        1
        +



        7
        )
      • ,
      • (
        1



        7
        )
      • (
        3
        +
        2



        2
        )
      • ,
      • (
        3
        2



        2
        )
      • ,
      • (
        3
        +



        7
        )
      • ,
      • (
        3



        7
        )
      • (
        1
        +
        2
        4


        2
        )
      • ,
      • (
        1
        2
        4


        2
        )
      • ,
      • (
        1
        +
        4


        7
        )
      • ,
      • (
        1
        4


        7
        )
      • (
        1
        +
        4
        )
      • ,
      • (
        1
        4
        )
      • ,
      • (
        1
        +
        7
        )
      • ,
      • (
        1
        7
        )
Question 6
6.
Find the number which is less than its square by 20
  • 5
  • 2
  • 8
  • 6
  • 4
Question 7
7.
    • Solve :
    •  
       
      12
      x
      2
      b
      2
         
       
       
      x
      b
         
       
       
      6
    • = 0
  •  
     
    2

     
     
    3
    b
    ,
     
     
    6

     
     
    8
    b
  •  
     
    1

     
     
    b
    ,
     
     
    1

     
     
    2
    b
  •  
     
    1

     
     
    3
    b
    ,
     
     
    1

     
     
    b
  •  
     
    1

     
     
    b
    ,
     
     
    1

     
     
    b
  •  
     
    1

     
     
    2
    b
    ,
     
     
    3

     
     
    5
    b
Question 8
8.
The product of two consecutive numbers is 20. Find the numbers
  • 4 , 5 or -4,-5
  • 5 , 6 or -5 , -6
  • 6 , 7 or -6 , -7
  • 2 , 2 or -2 , -2
  • 3 , 4 or -3 , -4
Question 9
9.
    • Find the roots of the quadratic equation
    • (
      6
      x
      2
       
      +
      8
      x
      )
      =
      0
  • (
    1
    ,
    -2
    )
  • (
    2
    ,
    -2
    )
  • (
    0
    ,
    (
    -4

    3
    )
    )
  • (
    1
    ,
    (
    -4

    3
    )
    )
Question 10
10.
    • Solve :
    • (
      x
      4
       
      7
      x
      2
       
      +
      10
      )
      =
      0
  • 4


    5
    ,
    (
    4


    5
    )
    ,
    4


    2
    ,
    (
    4


    2
    )
  • 5
    ,
    (
    5
    )
    ,
    2
    ,
    (
    2
    )



  • 5
    ,
    (



    5
    )
    ,



    2
    ,
    (



    2
    )



  • 8
    ,
    (



    8
    )
    ,



    5
    ,
    (



    4
    )



  • 2
    ,
    (



    3
    )
    ,



    1

    2
    ,
    (



    1

    2
    )