Class 8 Linear Equations In One Variable CBSE Questions & Answers

Class 8 · Linear Equations In One Variable

This is Mathematics Class 8 Linear Equations in One Variable CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Solve: \(\frac{{5b}}{6} = 5\)
  • A
    1
  • B
    6
    Correct
  • C
    4
  • D
    5
2
Solve: \(\frac{{6x}}{7} = 42\)
  • A
    49
    Correct
  • B
    6
  • C
    7
  • D
    42
3
Solve: \(\frac{{5y}}{2} = 15\)
  • A
    6
    Correct
  • B
    4
  • C
    5
  • D
    3
4
Solve: \(\frac{{4a}}{5} = 16\)
  • A
    10
  • B
    12
  • C
    30
  • D
    20
    Correct
5
Solve: \(\frac{m}{7} = \frac{2}{7}\)
  • A
    -1
  • B
    1
  • C
    2
    Correct
  • D
    -2
6
What should be added to twice the rational number \( - \frac{7}{3}\) to get\(\frac{3}{7}\)?
  • A
    21
  • B
    107
  • C
    \(\frac{{107}}{{21}}\)
    Correct
  • D
    0
7
The difference between two whole numbers is 66. The ratio of the two numbers is 2 : 5. What are the two numbers?
  • A
    44, 22\( - \frac{{12}}{{13}}\)
  • B
    11, 55
  • C
    44, 110
    Correct
  • D
    none of these
8
The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its breadth. What are the length and the breadth of the pool?
  • A
    36 m, 63 m
  • B
    52 m, 25 m
    Correct
  • C
    41 m, 14 m
  • D
    none of these
9
The base of an isosceles triangle is \(\frac{4}{3}\)cm. The perimeter of the triangle is \(4\frac{2}{{15}}\)cm. What is the length of either of the remaining equal sides?
  • A
    \(\frac{2}{5}cm\)
  • B
    1 cm
  • C
    \(1\frac{2}{5}cm\)
    Correct
  • D
    none of these
10
Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.
  • A
    60 and 70
  • B
    40 and 55
    Correct
  • C
    none of these
  • D
    50 and 60
11
Two numbers are in the ratio 5:3. If they differ by 18, what are the numbers?
  • A
    45, 27
    Correct
  • B
    27, 36
  • C
    36, 45
  • D
    27, 40
12
Three consecutive integers add up to 51. What are these integers?
  • A
    16, 17 and 18
    Correct
  • B
    18, 19 and 20
  • C
    none of these
  • D
    15, 16 and 17
13
The sum of three consecutive multiples of 8 is 888. Find the multiples.
  • A
    none of these
  • B
    288, 300 and 304
  • C
    288, 296 and 310
  • D
    288, 296 and 304
    Correct
14
Three consecutive integers are such that when they are taken in increasing order and multiplied by 2, 3 and 4 respectively, they add up to 74. Find these numbers.
  • A
    9, 10, 11
  • B
    none of these
  • C
    7, 8, 9
    Correct
  • D
    6, 7, 8
15
The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength?
  • A
    40
  • B
    0
  • C
    45
  • D
    48
    Correct