XAT 2020 Question Paper | Quantitative Aptitude and Data Interpretation

XAT Previous Year Paper | XAT QADI Questions | Question 15

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Read the information given below and answer the 2 associated questions.
190 students have to choose at least one elective and at most two electives from a list of three electives: E1, E2 and E3. It is found that the number of students choosing E1 is half the number of students choosing E2, and one third the number of students choosing E3.
Moreover, the number of students choosing two electives is 50.

Question 15 : In addition to the given information, which of the following information is NECESSARY and SUFFICIENT to compute the number of students choosing only E1, only E2 and only E3?

  1. Number of students choosing both E1 and E2
  2. Number of students choosing only E1, and number of students choosing both E2 and E3
  3. Number of students choosing only E2, and number of students choosing both E2 and E3
  4. No extra information is necessary
  5. Number of students choosing both E1 and E2, number of students choosing both E2 and E3, and number of students choosing both E3 and E1

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Explanatory Answer

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The question is "In addition to the given information, which of the following information is NECESSARY and SUFFICIENT to compute the number of students choosing only E1, only E2 and only E3?"

Hence, the answer is Number of students choosing only E2, and number of students choosing both E2 and E3

Choice C is the correct answer.

 

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