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Maths question from Social Forest Worker exam, 2026 by JKSSB

Match the mathematical descriptions (List-A) with their corresponding ratios (List-B):

List-A  
i. Sub-duplicate ratio of 25:36 
ii. Duplicate ratio of 3:4 
iii. Reciprocal ratio of 5:7 
iv. Compound ratio of 2:3 and 9:4  

List -B 
a. 9:16 
b. 3:2 
c. 5:6 
d. 7:5

 Choose the correct match:  

Last updated Jul 21, 2026
Correct Answer: Option D — i-c, ii-a, iii-d, iv-b
1. Sub-duplicate ratio of 25 to 36
The sub-duplicate ratio means taking the square root of each number.

The square root of 25 is 5, and the square root of 36 is 6.

This gives the ratio 5 to 6 (matches c).

2. Duplicate ratio of 3 to 4
The duplicate ratio means squaring each number.

3 squared is 9, and 4 squared is 16.

This gives the ratio 9 to 16 (matches a).

3. Reciprocal ratio of 5 to 7
The reciprocal ratio means reversing the position of the terms.

Inverting 5 to 7 gives 7 to 5 (matches d).

4. Compound ratio of 2 to 3 and 9 to 4
The compound ratio is found by multiplying the first terms together and the second terms together.

Multiplying 2 by 9 gives 18, and multiplying 3 by 4 gives 12.

Reducing 18 to 12 gives 3 to 2 (matches b).

Conclusion
The correct matching sequence is i-c, ii-a, iii-d, iv-b.

Correct Answer: D) i-c, ii-a, iii-d, iv-b
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
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JKSSB Social Forest Worker 2026

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Exam JKSSB
Recruitment Social Forest Worker
Year 2026
Subject Maths
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