Question Paper
Class / Subject: Class 9 (ICSE) · Mathematics
Chapter: Chapter 6 — Chapter 6: Simultaneous (Linear) Equations
Time Allowed: 32 minutes
Max Marks: 16
1. What are simultaneous equations? [1]
(A) Equations with the same variables solved together
(B) A single equation
(C) Unrelated equations
(D) Only equations with one variable
2. What is the substitution method? [1]
(A) Solving one equation and substituting into the other
(B) Only adding equations
(C) Only subtracting equations
(D) Ignoring one equation
3. What is the elimination method? [1]
(A) Adding or subtracting to eliminate a variable
(B) Only substituting
(C) Only guessing
(D) Ignoring variables
4. Solve x+y=10 and x-y=2 for x. [1]
(A) 6
(B) 4
(C) 10
(D) 2
5. What is y in the above example? [1]
(A) 4
(B) 6
(C) 10
(D) 2
6. Why use simultaneous equations? [1]
(A) To solve problems with two unknowns
(B) No reason
(C) It's not useful
(D) Only for tests
7. What must simultaneous equations share? [1]
(A) The same variables
(B) Different variables always
(C) No relationship
(D) Only numbers, no variables
8. Do substitution and elimination give the same answer? [1]
(A) Yes
(B) No, they give different answers
(C) Only sometimes
(D) They cannot both be used
9. What are simultaneous equations? [1]
(A) Equations with the same variables solved together
(B) A single equation
(C) Unrelated equations
(D) Only equations with one variable
10. What is the substitution method? [1]
(A) Solving one equation and substituting into the other
(B) Only adding equations
(C) Only subtracting equations
(D) Ignoring one equation
11. What is the elimination method? [1]
(A) Adding or subtracting to eliminate a variable
(B) Only substituting
(C) Only guessing
(D) Ignoring variables
12. Solve x+y=10 and x-y=2 for x. [1]
(A) 6
(B) 4
(C) 10
(D) 2
13. What is y in the above example? [1]
(A) 4
(B) 6
(C) 10
(D) 2
14. Why use simultaneous equations? [1]
(A) To solve problems with two unknowns
(B) No reason
(C) It's not useful
(D) Only for tests
15. What must simultaneous equations share? [1]
(A) The same variables
(B) Different variables always
(C) No relationship
(D) Only numbers, no variables
16. Do substitution and elimination give the same answer? [1]
(A) Yes
(B) No, they give different answers
(C) Only sometimes
(D) They cannot both be used