Question Paper
Class / Subject: Class 9 (SSC) · Mathematics - Algebra (बीजगणित)
Chapter: Chapter 4 — Chapter 4: Ratio and Proportion
Time Allowed: 32 minutes
Max Marks: 16
1. What is a ratio? [1]
(A) A comparison of two quantities
(B) A single number
(C) An equation
(D) A type of polynomial
2. What is a proportion? [1]
(A) Two equal ratios
(B) A single ratio
(C) An unequal comparison
(D) A type of fraction only
3. What is continued proportion? [1]
(A) a:b=b:c relationship
(B) Only a:b relationship
(C) No specific relationship
(D) A single ratio only
4. What is the mean proportional? [1]
(A) b in a:b=b:c, calculated as √(ac)
(B) a in the relationship
(C) c in the relationship
(D) None of these
5. What is direct proportion? [1]
(A) Quantities increase together
(B) One increases, other decreases
(C) No relationship
(D) Both decrease randomly
6. What is inverse proportion? [1]
(A) One increases as the other decreases
(B) Both increase together
(C) No relationship
(D) Both decrease together
7. What is the mean proportional of 4 and 9? [1]
(A) 6
(B) 6.5
(C) 13
(D) 36
8. Why learn about ratio and proportion? [1]
(A) For solving comparative and scaling problems
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is a ratio? [1]
(A) A comparison of two quantities
(B) A single number
(C) An equation
(D) A type of polynomial
10. What is a proportion? [1]
(A) Two equal ratios
(B) A single ratio
(C) An unequal comparison
(D) A type of fraction only
11. What is continued proportion? [1]
(A) a:b=b:c relationship
(B) Only a:b relationship
(C) No specific relationship
(D) A single ratio only
12. What is the mean proportional? [1]
(A) b in a:b=b:c, calculated as √(ac)
(B) a in the relationship
(C) c in the relationship
(D) None of these
13. What is direct proportion? [1]
(A) Quantities increase together
(B) One increases, other decreases
(C) No relationship
(D) Both decrease randomly
14. What is inverse proportion? [1]
(A) One increases as the other decreases
(B) Both increase together
(C) No relationship
(D) Both decrease together
15. What is the mean proportional of 4 and 9? [1]
(A) 6
(B) 6.5
(C) 13
(D) 36
16. Why learn about ratio and proportion? [1]
(A) For solving comparative and scaling problems
(B) No reason
(C) It's not useful
(D) Only for tests