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      Question

      Which of the following laptop does C

      use? Study the following information carefully and answer the below questions Six persons- A, B, C, D, E, and F are sitting on the circular table facing the center. They are using different types of laptops- HP, Apple, Dell, Lenovo, Microsoft, and Sony but not necessarily in the same order. D sits second to the left of the one who uses Sony laptops. The one who uses Sony laptops and the one who uses Dell laptops are immediate neighbors. B sits opposite to the one who sits immediate right of A. B neither uses Sony nor Dell. The one who uses HP sits second to the left of A. The one who uses Lenovo sits immediate left of the one who uses Microsoft. D neither uses Microsoft nor Apple. Either B or E uses Apple. F does not use Dell.
      A Dell Correct Answer Incorrect Answer
      B Sony Correct Answer Incorrect Answer
      C Microsoft Correct Answer Incorrect Answer
      D Apple Correct Answer Incorrect Answer
      E Lenovo Correct Answer Incorrect Answer

      Solution

      We have, D sits second to the left of the one who uses Sony laptops. The one who uses Sony laptops and the one who uses Dell laptops are immediate neighbors. From the above condition, there are two possibilities. Again we have, B sits opposite to the one who sits immediate right of A. B neither uses Sony nor Dell. From the above condition, there are four possibilities. Again we have, The one who uses HP sits second to the left of A. The one who uses Lenovo sits immediate left of the one who uses Microsoft. D neither uses Microsoft nor Apple. From the above condition, Case2, case1a, and case2a get eliminated. Again we have, Either B or E uses Apple.   F does not use Dell. From the above condition, case1 shows the final arrangement

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