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Sixteen patients in a hospital must undergo a blood - CAT DILR questions – Data Interpretation

Since 2015, the CAT DILR section has become increasingly difficult. In order to tackle the tougher CAT Level DILR questions for the CAT Exam, it is important to understand the basics of CAT. Data Interpretation sets and Logical reasoning puzzles were distinct in DILR. Data Interpretation and Logical Reasoning used to be about computation and understanding charts, graphs, and tables. Within that one hour, you get 5 high-quality puzzles, with some of them being quite challenging. You will solve 30 actual CAT puzzles in CAT 2019 and CAT 2020. The purpose of this page is to help you prepare for that. Take a crack at those puzzles!

To obtain a great CAT score, make use of MBAP Free Study material with detailed solutions and video explanations. Check out MBAP free Mock test to take these questions in a test format for free.

You may also find remaining question solution of CAT 2020, slot 3 by searching the question in the search bar.

The question below is from previous year CAT question from CAT 2020 exam comes CAT Data Interpretation: Sixteen patients in a hospital must undergo a blood. Find out by answering this question which tests an aspirant’s DILR Ability Skills:

CAT 2020 – Slot 3 - Data Interpretation - Set-5 - Sixteen patients in a hospital must undergo a blood

Set 5: Sixteen patients in a hospital must undergo a blood test for a disease. It is known that exactly one of them has the disease. The hospital has only eight testing kits and has decided to pool blood samples of patients into eight vials for the tests. The patients are numbered 1 through 16, and the vials are labelled A, B, C, D, E, F, G, and H. The following table shows the vials into which each patient’s blood sample is distributed.


If a patient has the disease, then each vial containing his/her blood sample will test positive. If a vial tests positive, one of the patients whose blood samples were mixed in the vial has the disease. If a vial tests negative, then none of the patients whose blood samples were mixed in the vial has the disease.

Q. 9: Suppose vial C tests positive and vials A, E and H test negative. Which patient has the disease?

a. Patient 8
b. Patient 14
c. Patient 6
d. Patient 2

Correct Answer: c. Patient 6.

Q. 10: Suppose vial A tests positive and vials D and G test negative. Which of the following vials should we test next to identify the patient with the disease? 

a. Vial H
b. Vial E
c. Vial B
d. Vial C

Correct Answer: b. Vial E.

Q. 11: Which of the following combinations of test results is NOT possible?

a. Vial B positive, vials C, F and H negative

b. Vials A and G positive, vials D and E negative

c. Vials B and D positive, vials F and H negative

 

d. Vials A and E positive, vials C and D negative

Correct Answer: d. Vials A and E positive, vials C and D negative.

Q. 12: Suppose one of the lab assistants accidentally mixed two patients’ blood samples before they were distributed to the vials. Which of the following correctly represents the set of all possible numbers of positive test results out of the eight vials?

a. {4,5,6,7} 
b. {4,5,6,7,8}
c. {4,5}
d. {5,6,7,8}

Correct Answer: b. {4,5,6,7,8}.

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