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.

Three triangles. Each has a number at the apex and two numbers in a divided band across its base: 36 above 12 and 24; 69 above 42 and 63; and a question mark above 11 and 25. 361224 694263 ?1125

  1. A. 36
  2. B. 0
  3. C. 14
  4. 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