CBSE Board Practice

CBSE Grade VIII - Linear Equations in One Variable
Question 1
1.
    • Which of the following equations is not the same as
    • (
      2
      x
      +
      8
      )
      =
      (
      8
      )
  • (
    2
    x
    +
    3
    )
    =
    (
    13
    )
  • (
    2
    x
    +
    13
    )
    =
    (
    3
    )
  • (
    2
    x
    +
    9
    )
    =
    (
    7
    )
  • (
    2
    x
    +
    7
    )
    =
    (
    9
    )
  • (
    2
    x
    +
    5
    )
    =
    (
    5
    )
Question 2
2.
    • Which of the following equations is the same as
    • (
      2
      x
      7
      )
      =
      0
  • (
    6
    x
    +
    21
    )
    =
    0
  • (
    6
    x
    +
    21
    )
    =
    1
  • (
    6
    x
    +
    24
    )
    =
    0
  • (
    6
    x
    +
    18
    )
    =
    0
  • (
    6
    x
    +
    21
    )
    =
    (
    1
    )
Question 3
3.
A train crosses a telegraph post in 19.21 sec and a bridge 860.78 m long in 48.30 sec. What is the length of the train?
  • 569.42 m
  • 570.42 m
  • 567.42 m
  • 568.42 m
  • 566.42 m
Question 4
4.
    • Solve :
    •  
       
      (
      3
      x
      5
      )

       
       
      (
      9
      x
      +
      4
      )
      =
       
       
      2

       
       
      1
  • 13

    15
  • 13

    17
  • 11

    15
  • 1
Question 5
5.
    • Solve the equation
    • (
      7

      6
      x
      9

      4
      )
      =
      (
      2

      5
      )
  • 111

    70
  • 113

    70
  • 113

    72
  • 109

    70
  • 109

    68
Question 6
6.
    • Solve :
    •  
       
      (
      4
      x
      4
      )
        +  
       
       
      (
      3
      x
      +
      2
      )

       
       
      12
      =
       
       
      (
      4
      x
      +
      3
      )

       
       
      4
  • 55

    59
  • 1
  • 55

    57
  • 53

    57
Question 7
7.
    • Which of the following equations is the same as
    • (
      9
      x
      1
      )
      =
      (
      x
      7
      )
  • (
    36
    x
    9
    )
    =
    (
    4
    x
    28
    )
  • (
    36
    x
    4
    )
    =
    (
    4
    x
    26
    )
  • (
    36
    x
    4
    )
    =
    (
    4
    x
    30
    )
  • (
    36
    x
    +
    1
    )
    =
    (
    4
    x
    28
    )
  • (
    36
    x
    4
    )
    =
    (
    4
    x
    28
    )
Question 8
8.
    • Solve :
    •  
       
      (
      x
      5
      )
        +  
       
       
      (
      x
      1
      )

       
       
      2
      =
       
       
      (
      x
      1
      )
  • 11
  • 8
  • 6
  • 10
  • 9
Question 9
9.
The ratio of males to females in a committee of 338 members is 17 : 9. How many more ladies should be added to the committee so that the ratio of males to females is 221 : 177?
  • 60
  • 59
  • 61
  • 62
  • 58
Question 10
10.
    • Solve the equation
    • (
      3

      2
      x
      +
      4
      )
      =
      0
  • (
    -10

    3
    )
  • (
    -12

    5
    )
  • (
    -8

    3
    )
  • -2
  • -4