# 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/MCQExtra 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