CAT 2020 Question Paper | CAT LR DI Slot 3

CAT Questions

CAT previous year paper are the best place for a CAT aspirant to practice the DILR questions that are closest to what you can expect in the CAT Exam. The DILR set that you see below is from slot 3 of CAT 2020 Question Paper. This is among the easier sets that appeared in this slot. Try out this question and see if you can get to the correct answer.
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CAT DILR : CAT 2020 Question Paper Slot 3

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.

Question 21 : Suppose vial C tests positive and vials A, E and H test negative. Which patient has the disease?

1. Patient 8
2. Patient 14
3. Patient 6
4. Patient 2

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Video Explanation

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Explanatory Answer

Coming Soon...

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The question is " Suppose vial C tests positive and vials A, E and H test negative. Which patient has the disease? "

Hence, the answer is 'Patient 6'

Choice C is the correct answer.

 

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