Research Papers | CAT 2025 DILR Slot 1 | Teeny Numbers | Hard

Q1CAT 2025 · Slot 2 · CAT Medium · TITA✓ Answer verified

Research Papers | Teeny Numbers | CAT 2025 DILR Slot 2 | Hard

The following charts depict details of research papers written by four authors, Arman, Brajen, Chintan, and Devon. The papers were of four types, single-author, two-author, three-author, and four-author, that is, written by one, two, three, or all four of these authors, respectively. No other authors were involved in writing these papers. The following additional facts are known. 1. Each of the authors wrote at least one of each of the four types of papers. 2. The four authors wrote different numbers of single-author papers. 3. Both Chintan and Devon wrote more three-author papers than Brajen. 4. The number of single-author and two-author papers written by Brajen were the same.

What was the total number of two-author and three-author papers written by Brajen?

Q2CAT 2025 · Slot 2 · CAT Hard✓ Answer verified

Research Papers | Teeny Numbers | CAT 2025 DILR Slot 2 | Hard

The following charts depict details of research papers written by four authors, Arman, Brajen, Chintan, and Devon. The papers were of four types, single-author, two-author, three-author, and four-author, that is, written by one, two, three, or all four of these authors, respectively. No other authors were involved in writing these papers. The following additional facts are known. 1. Each of the authors wrote at least one of each of the four types of papers. 2. The four authors wrote different numbers of single-author papers. 3. Both Chintan and Devon wrote more three-author papers than Brajen. 4. The number of single-author and two-author papers written by Brajen were the same.

Which of the following statements is/are NECESSARILY true? i. Chintan wrote exactly three two-author papers. ii. Chintan wrote more single-author papers than Devon.

Q3CAT 2025 · Slot 2 · CAT Hard✓ Answer verified

Research Papers | Teeny Numbers | CAT 2025 DILR Slot 2 | Hard

The following charts depict details of research papers written by four authors, Arman, Brajen, Chintan, and Devon. The papers were of four types, single-author, two-author, three-author, and four-author, that is, written by one, two, three, or all four of these authors, respectively. No other authors were involved in writing these papers. The following additional facts are known. 1. Each of the authors wrote at least one of each of the four types of papers. 2. The four authors wrote different numbers of single-author papers. 3. Both Chintan and Devon wrote more three-author papers than Brajen. 4. The number of single-author and two-author papers written by Brajen were the same.

Which of the following statements is/are NECESSARILY true? i. Arman wrote three-author papers only with Chintan and Devon. ii. Brajen wrote three-author papers only with Chintan and Devon.

Q4CAT 2025 · Slot 2 · CAT Medium · TITA✓ Answer verified

Research Papers | Teeny Numbers | CAT 2025 DILR Slot 2 | Hard

The following charts depict details of research papers written by four authors, Arman, Brajen, Chintan, and Devon. The papers were of four types, single-author, two-author, three-author, and four-author, that is, written by one, two, three, or all four of these authors, respectively. No other authors were involved in writing these papers. The following additional facts are known. 1. Each of the authors wrote at least one of each of the four types of papers. 2. The four authors wrote different numbers of single-author papers. 3. Both Chintan and Devon wrote more three-author papers than Brajen. 4. The number of single-author and two-author papers written by Brajen were the same.

If Devon wrote more than one two-author papers, then how many two-author papers did Chintan write?

Research Papers | CAT 2025 DILR Slot 1 | Teeny Numbers | Hard

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