In the given figures, the number at the top is obtained by applying a certain logic to the numbers at the bottom. Using the same…
Logical Reasoning & Analytical Ability ·Previously asked in JKPSC Combined Competitive Examination (JKCCE) 2025
View the full solved paper: JKCCE Prelims 2025 - GS Paper II (Set B)
Question
In the given figures, the number at the top is obtained by applying a certain logic to the numbers at the bottom. Using the same logic, find the number that should replace the question mark.
- A. 36
- B. 0
- C. 14
- D. 27 (Correct answer)
Correct Answer
Option D — 27
Detailed Solution & Explanation
The correct answer is 27.
Key Points
- In each triangle, take the digit sum of each bottom number and write the two results side by side to form the number on top.
- First triangle: 12 → 1 + 2 = 3, and 24 → 2 + 4 = 6, giving 36 ✓
- Second triangle: 42 → 4 + 2 = 6, and 63 → 6 + 3 = 9, giving 69 ✓
- Third triangle: 11 → 1 + 1 = 2, and 25 → 2 + 5 = 7, giving 27.
Additional Information
- The rule concatenates two digits rather than performing arithmetic on them, which is why the answer is 27 and not 2 + 7 = 9.
- In figure-based number puzzles, test digit operations (digit sums, digit products, concatenation) as soon as ordinary addition and multiplication fail to reproduce the given values.
*Ministry of Papers worked solution. The Commission has not yet published the official key for this paper; this answer will be reconciled with it on release.*
Topics covered: Number Puzzle Figure Required Worked Solution