CAT 2025 Slot 3 · DILR · Question 10

CAT 2025 Slot 3 previous year question on Mixed DI (Radar, Triangular, Stock etc), with the answer and a step-by-step solution.

Mixed DI (Radar, Triangular, Stock etc)DATA INTERPRETATION -High LevelMultiple choiceMedium

Set 3: Puzzle Solving Competition — this question belongs to a set. Read the full set with all 4 questions →

Anirbid, Chandranath, Koushik, and Suranjan participated in a puzzle solving competition. The competition comprised 10 puzzles that had to be solved in the same sequence, i.e., a competitor got access to a puzzle as soon as they solved the previous puzzle. Some of the puzzles were visual puzzles and the others were number-based puzzles. The winner of the competition was the one who solved all puzzles in the least time.

The following charts describe their progress in the competition. The chart on the left shows the number of puzzles solved by each competitor at a given time (in minutes) after the start of the competition. The chart on the right shows the number of visual puzzles solved by each competitor at a given time (in minutes) after the start of the competition.

Who had solved the largest number of puzzles by the 20-th minute from the start of the competition?

  1. A

    Chandranath

  2. B

    Koushik

  3. C

    Suranjan

  4. D

    Anirbid

Pick an option, then check.
Answer & solution

Answer: Option B

Read each line in the 'All puzzles' chart at time = 20.

Koushik (green) reaches 7 puzzles at minute 19.

Chandranath (yellow) and Anirbid (red) are at 5, and Suranjan (blue) is at 4.

So Koushik had solved the most by the 20th minute.

Shortcut: at minute 20 the green line is clearly highest; no other line has passed 5.

Hence, the answer is option 2.

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