CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
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