CBSE Class 8 Mathematics/Linear Equations in One Variable/ MCQ
CBSE Class 8 Mathematics /Linear Equations in One Variable/MCQ is about the multiple choice questions that you can expect for Yearly examination. Here you can find out practice problems for Class 8 Mathematics.
CBSE Class 8 Mathematics/ Linear Equations in One Variable – Chapter 2/MCQ
Extra Questions for Practice/Multiple Choice Questions.
Choose the correct answer from the options given below:
- Which of the following is a linear equation in one variable?
A. 3x
B. 3x + 2y
C. 3x + 2y + z - Solve 3(x + 2) = 6
A. 0
B. 1
C. -1 - Solve 5p = 40
A. 5
B. 8
C. 35 - Sum of two numbers is 120. One of the numbers is 20 more than the other. What are the numbers?
A. 50, 70
B. 60, 60
C. 80, 40 - The sum of three consecutive multiples of 9 is 297. Find these multiples?
A. 81, 90, 99
B. 90, 99, 108
C. 99, 108, 117 - Solve 3x – 4 = x + 2
A. 2
B. 3
C. 4 - “5 is added to 7 times a number gives 54”Write this as an equation?
A. 5x + 7 = 54
B. 7x + 5 = 54
C. 5 – 7x = 54 - 5 times a number gives 50. The number is ———–
A. 5
B. 10
C. 25 - The standard form of linear equations in one variable is written as ————
A. ax + b = 0
B. ax + by = 0
C. ax + by + c = 0 - A linear equation in one variable has ——– solution.
A. One and unique
B. Infinite solutions
C. No solution - The perimeter of a rectangle is 30 cm and its width is 5 cm. Find its length?
A. 5
B. 10
C. 15 - Two numbers are in the ratio 7:4.If they differ by 18, find the numbers?
A. 12, 24
B. 42, 24
C. 36, 18 - If 2(x + 3) = x + 18, find the value of x?
A. 10
B. 12
C. 14 - When a number is divided by 5, the result is -2. Find the number?
A. -5/2
B. -10
C. 10 - If the sum of two consecutive numbers is 31, form an equation to find the numbers?
A. 2x + 1 = 31
B. 2x = 31
C. 2x – 1 = 31
ANSWERS:
- 3x
- 0
- 8
- 50, 70
- 90, 99, 108
- 3
- 7x + 5 = 54
- 10
- ax + b = 0
- One and unique
- 10
- 42, 24
- 12
- -10
- 2x + 1 = 31