CBSE Board Practice

CBSE Grade VIII - Linear Equations in One Variable
Question 1
1.
    • Solve the equation
    • 7
      x
      =
      (
      7
      )
  • -4
  • 1
  • -1
  • 0
  • -2
Question 2
2.
    • The L.H.S of the equation
    • (
      5
      x
      +
      1
      )
      =
      0
    • is
  • (
    5
    x
    +
    1
    )
  • (
    4
    x
    +
    1
    )
  • (
    5
    x
    +
    3
    )
  • (
    5
    x
    1
    )
  • 0
Question 3
3.
    • The R.H.S of the equation
    • (
      6
      x
      1
      )
      =
      (
      9
      x
      6
      )
    • is
  • (
    9
    x
    3
    )
  • (
    10
    x
    6
    )
  • (
    9
    x
    6
    )
  • (
    9
    x
    8
    )
  • (
    6
    x
    1
    )
Question 4
4.
The ages of A and B are in the ratio 10 : 9. 5 years hence, their ages will be in the ratio 11 : 10. Find their present ages.
  • 70
    :
    63
  • 40
    :
    36
  • 30
    :
    27
  • 50
    :
    45
Question 5
5.
    • Which of the following equations is the same as
    • (
      9
      x
      7
      )
      =
      (
      8
      )
  • (
    3
    x
    14
    )
    =
    (
    6
    x
    1
    )
  • (
    6
    x
    9
    )
    =
    (
    3
    x
    6
    )
  • (
    12
    x
    5
    )
    =
    (
    3
    x
    10
    )
  • (
    6
    x
    9
    )
    =
    (
    3
    x
    10
    )
  • 15
    x
    =
    (
    6
    x
    15
    )
Question 6
6.
    • Which of the following equations is the same as
    • (
      5
      x
      +
      1
      )
      =
      (
      4
      x
      +
      2
      )
  • (
    12
    x
    5
    )
    =
    (
    3
    x
    4
    )
  • (
    4
    x
    2
    )
    =
    (
    3
    x
    +
    5
    )
  • (
    12
    x
    5
    )
    =
    (
    11
    x
    +
    8
    )
  • (
    2
    x
    +
    7
    )
    =
    (
    3
    x
    4
    )
  • (
    6
    x
    +
    4
    )
    =
    (
    5
    x
    1
    )
Question 7
7.
    • Solve the equation
    • (
      4
      x
      +
      4
      )
      =
      0
  • 0
  • -3
  • 1
  • -1
  • -2
Question 8
8.
    • Which of the following equations is the same as
    • (
      4
      x
      +
      8
      )
      =
      0
  • (
    4
    x
    +
    6
    )
    =
    (
    2
    )
  • (
    4
    x
    +
    6
    )
    =
    3
  • (
    4
    x
    +
    5
    )
    =
    (
    2
    )
  • (
    4
    x
    +
    6
    )
    =
    (
    7
    )
  • (
    4
    x
    +
    7
    )
    =
    (
    2
    )
Question 9
9.
    • Solve :
    •  
       
      (
      x
      +
      5
      )
        +  
       
       
      (
      x
      +
      3
      )

       
       
      6
      =
       
       
      (
      x
      5
      )

       
       
      2
  • -25
  • -24
  • -23
  • -22
  • -26
Question 10
10.
    • Solve :
    •    
       
       
      5

       
       
      (
      x
      1
      )
        +  
       
       
      1

       
       
      (
      x
      +
      2
      )
      =
       
       
      5

       
       
      (
      x
      +
      2
      )
         
       
       
      9

       
       
      (
      x
      4
      )
  • (
    -2

    15
    )
  • (
    -2

    11
    )
  • (
    -2

    13
    )
  • (
    -4

    13
    )
  • 0