1. Solve for m: = 4
- A20
- B18
- C40
- D22
Show answer
Answer: A) 20
Multiply both sides by 5: m = 4 x 5 = 20.
Class 8 Solving Simple Equations — practice questions with answers
Linear Equations · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. Solve for x: 6x - 4 = 4x + 10
- A3
- B5
- C7
- D14
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Answer: C) 7
6x - 4x = 10 + 4, so 2x = 14 and x = 7.
3. Arjun's age is 4 years more than twice the age of his sister Diya.
Arjun is 18 years old.
How old is Diya (in years)?
Arjun is 18 years old.
How old is Diya (in years)?
- A14
- B6
- C8
- D7
Show answer
Answer: D) 7
Let Diya's age be x. Then 2x + 4 = 18, so 2x = 14 and x = 7.
4. The length of a rectangular garden is twice its breadth.
If the perimeter is 96 m, find the breadth (in m).
If the perimeter is 96 m, find the breadth (in m).
- A17
- B16
- C15
- D32
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Answer: B) 16
Let breadth = x, length = 2x. Perimeter = 2(2x + x) = 96, so 6x = 96 and x = 16.
5. A fruit seller had a basket of apples.
He sold half of them plus 5 in the morning, and was left with 45 apples.
If x is the number of apples he started with, solve to find x.
He sold half of them plus 5 in the morning, and was left with 45 apples.
If x is the number of apples he started with, solve to find x.
- A100
- B200
- C110
- D90
Show answer
Answer: A) 100
, so and x = 100 apples.
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