CAT 2025 Slot 3 DILR Set 3 Q10–Q13

A DILR caselet from the Data Interpretation & Logical Reasoning (DILR) section of CAT 2025 Slot 3, with 4 questions (Charts & Tables). Answers are CAT's official key.

The set

This set relies on a figure in the original paper, which is not reproduced here. The questions and answers are below.

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.

[Figure in the original paper]

Question 10

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
    Anirbid
  4. D
    Suranjan

Answer: (B) Koushik Charts & Tables MCQ

Solution

  1. Read the left chart at minute 20: Koushik's line jumped to 7 at minute 19.
  2. Anirbid and Chandranath are at 5, Suranjan at 4, so Koushik had solved the most.

Question 11

How many minutes did Suranjan take to solve the third visual puzzle in the competition?

TITA: type in the answer. There are no options and no negative marking.

Answer: 2 Charts & Tables TITA

Solution

  1. Koushik's charts show visual puzzles solved at minutes 2, 12, 25, 29, which are his 1st, 4th, 8th and 9th puzzles. The order is the same for everyone, so puzzles 1, 4, 8, 9 are visual and 2, 3, 5, 6, 7, 10 are number-based.
  2. Suranjan's third visual puzzle is puzzle 8. He finished puzzle 7 at minute 26 and puzzle 8 at minute 28, so it took 2 minutes.

Question 12

At what number in the sequence was the fourth number-based puzzle?

TITA: type in the answer. There are no options and no negative marking.

Answer: 6 Charts & Tables TITA

Solution

  1. Koushik's charts show visual puzzles solved at minutes 2, 12, 25, 29, which are his 1st, 4th, 8th and 9th puzzles. The order is the same for everyone, so puzzles 1, 4, 8, 9 are visual and 2, 3, 5, 6, 7, 10 are number-based.
  2. Count the number-based puzzles in order: 2 (first), 3 (second), 5 (third), 6 (fourth). So the fourth number-based puzzle is puzzle 6.

Question 13

Which of the following is the closest to the average time taken by Anirbid to solve the number-based puzzles in the competition?
  1. A
    3.3 minutes
  2. B
    2.5 minutes
  3. C
    4.0 minutes
  4. D
    3.8 minutes

Answer: (C) 4.0 minutes Charts & Tables MCQ

Solution

  1. Koushik's charts show visual puzzles solved at minutes 2, 12, 25, 29, which are his 1st, 4th, 8th and 9th puzzles. The order is the same for everyone, so puzzles 1, 4, 8, 9 are visual and 2, 3, 5, 6, 7, 10 are number-based.
  2. Anirbid's finish times for puzzles 1-10: 4, 9, 11, 14, 19, 22, 27, 29, 33, 37.
  3. Number puzzles took \(5, 2, 5, 3, 5, 4\) minutes (puzzles 2, 3, 5, 6, 7, 10): total 24, average \(24/6 = 4.0\).

More Charts & Tables questions from CAT

All 130 Charts & Tables questions asked since 2017.