Algebraic Expressions Class 7 MCQ Quiz
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This is a practice test MCQ quiz for class 7 students to test their problem-solving skills, knowledge, and confidence on the topic of algebraic expressions. So, fellas, are you ready to assess yourself with this amazing quiz? If yes, take the quiz then. Variable expressions are sometimes quite tough to solve, but if your basics are clear, then you can easily solve any type of question. This quiz will help you to practice more in this topic, and then you'll score good marks in your exams too. Good luck!
- 1.
Write the expression for a) 32 plus a number n b) 58 less than a number n
- A.
32+n, n-58
- B.
32-n, 58+n
- C.
32-58+n
- D.
32-n+58
Correct Answer
A. 32+n, n-58Explanation
The expression "32 + n" represents the sum of 32 and a number n. The expression "n-58" represents the result of subtracting a number 58 from n.Rate this question:
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- 2.
The coefficient of x² in – 5x² is
- A.
-4
- B.
-5
- C.
4
- D.
5
Correct Answer
B. -5Explanation
The coefficient of a variable is the numerical factor that multiplies it. In the expression –5x², the variable is x², and the numerical factor multiplying it is –5. Therefore, the coefficient of x² is –5.Rate this question:
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- 3.
The value of 3x² – 5x + 3, if x=1 is
- A.
1
- B.
-1
- C.
0
- D.
2
Correct Answer
A. 1Explanation
When x=1, we substitute the value of x into the expression 3x² - 5x + 3. This gives us 3(1)² - 5(1) + 3, which simplifies to 3(1) - 5 + 3. Further simplifying, we get 3 - 5 + 3, which equals 1. Therefore, the value of 3x² - 5x + 3 when x=1 is 1.Rate this question:
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- 4.
Solve the equation: –z² + 22z² – 5z – 11z² + 5z
- A.
10 z2
- B.
Z
- C.
-10 z2
- D.
Z
Correct Answer
A. 10 z2Explanation
The equation is simplified by combining like terms. By combining the terms -z^2, 22z^2, -11z^2, and 10z^2, we get 10z^2. Therefore, the correct answer is 10z^2.Rate this question:
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- 5.
The expression 4p²q – 4pq² + 1 is a
- A.
Binomial
- B.
Trinomial
- C.
Monomial
- D.
None of the above
Correct Answer
B. TrinomialExplanation
The given expression has three terms: 4p²q, -4pq², and 1. Therefore, it is a trinomial.Rate this question:
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- 6.
I= PRT so what does R=
- A.
I/PT
- B.
PT/I
- C.
T/PI
- D.
P/TI
Correct Answer
A. I/PTExplanation
The formula I = PRT represents the relationship between interest (I), principal (P), rate (R), and time (T). To find the value of R, we need to isolate it on one side of the equation. By dividing both sides of the equation by PT, we get R = I/PT. This means that the rate is equal to the interest divided by the product of the principal and time.Rate this question:
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- 7.
Which of the following pairs of terms is of unlike terms?
- A.
-p²q², 12p²q²
- B.
Qp², 13p²q
- C.
41,100
- D.
– 4x²; – Axy²
Correct Answer
D. – 4x²; – Axy²Explanation
The given pair of terms, "-4x^2" and "-Axy^2", is of unlike terms because they have different variables. The first term has a variable "x" raised to the power of 2, while the second term has a variable "xy" raised to the power of 2. Additionally, the coefficient of the second term is a variable "A", whereas the coefficient of the first term is a constant "-4". Therefore, this pair of terms is unlike.Rate this question:
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- 8.
(5x – y + 8) - (5x + 3y)
- A.
4x – 8
- B.
4y – 8
- C.
8 – 4y
- D.
4x + 8
Correct Answer
C. 8 – 4yExplanation
The given expression is (5x – y + 8) - (5x + 3y). To simplify this expression, we can remove the parentheses and combine like terms. Distributing the negative sign inside the second set of parentheses, we get 5x - y + 8 - 5x - 3y. Combining like terms, we have -4y + 8. Therefore, the correct answer is 8 – 4y.Rate this question:
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- 9.
Subtracting -3x² – 1 from 2x + 1
- A.
– 3x² + 2x – 2
- B.
– 3x² + 2
- C.
3x² – 2
- D.
3x² + 2x + 2
Correct Answer
D. 3x² + 2x + 2Explanation
The given expression is subtracting -3x^2 - 1 from 2x + 1. To subtract the expression, we distribute the negative sign to each term in -3x^2 - 1, which gives us -(-3x^2) - (-1). Simplifying further, we get 3x^2 + 2. Thus, the correct answer is 3x^2 + 2x + 2.Rate this question:
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- 10.
What is the coefficient of y2 in the expression 3y2 + 4x?
- A.
3
- B.
4
- C.
1
- D.
X
Correct Answer
A. 3Explanation
The coefficient of y^2 in the expression 3y^2 + 4x is 3. This is because the coefficient is the number that multiplies the variable, which in this case is y^2. The coefficient of y^2 is 3, as it is the number that is directly in front of the variable term.Rate this question:
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Sep 29, 2024Quiz Edited by
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Feb 03, 2022Quiz Created by
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