NCERT Class 7 Maths Part 2 Chapter 7 Finding the Unknown MCQ Questions with Answers

Class 7 Maths Part 2 Chapter 7 MCQs

1. A variable is:
A. A fixed number
B. A letter representing an unknown value
C. A mathematical operation
D. A constant value
Answer: B

2. Solve: x + 8 = 15
A. 5
B. 6
C. 7
D. 8
Answer: C

3. Solve: y − 9 = 12
A. 19
B. 20
C. 21
D. 22
Answer: C

4. Solve: 5a = 40
A. 6
B. 7
C. 8
D. 9
Answer: C

5. Solve: b ÷ 6 = 9
A. 45
B. 48
C. 54
D. 60
Answer: C

6. Solve: 3x + 4 = 19
A. 4
B. 5
C. 6
D. 7
Answer: B

7. Solve: 2m − 8 = 18
A. 12
B. 13
C. 14
D. 15
Answer: B

8. Solve: 7p = 63
A. 7
B. 8
C. 9
D. 10
Answer: C

9. Solve: n/5 = 11
A. 50
B. 55
C. 60
D. 65
Answer: B

10. Which operation is the inverse of addition?
A. Multiplication
B. Division
C. Subtraction
D. Squaring
Answer: C

11. Which operation is the inverse of multiplication?
A. Addition
B. Division
C. Subtraction
D. Simplification
Answer: B

12. Check whether x = 6 satisfies the equation x + 9 = 15.
A. Yes
B. No
C. Cannot be determined
D. Only sometimes
Answer: A

13. A linear equation in one variable has:
A. Two unknowns
B. One unknown
C. No unknown
D. Three unknowns
Answer: B

14. Equations are mainly used to:
A. Find unknown values
B. Draw circles only
C. Measure angles only
D. Count objects only
Answer: A

15. Linear equations are useful in:
A. Budgeting and shopping
B. Age and distance problems
C. Business calculations
D. All of the above
Answer: D