GMAT Quant | Set Theory

Sample Practice Questions in Set theory

You may get one to two questions from sets in the GMAT quant section - in both variants viz., problem solving and data sufficiency. The concepts tested include union and intersection of 2 or 3 sets, subsets, proper subsets, and complimentary sets. Sample GMAT practice questions from set theory is given below. Attempt these questions and check whether you have got the correct answer. If you have not go to the explanatory answer or the video explanations (wherever provided) to learn how to crack the question.

  1. In a class of 120 students numbered 1 to 120, all even numbered students opt for Physics, those whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for none of the three subjects?

    1. 19
    2. 41
    3. 21
    4. 57
    5. 26
  2. Of the 200 candidates who were interviewed for a position at a call center, 100 had a two-wheeler, 70 had a credit card and 140 had a mobile phone. 40 of them had both, a two-wheeler and a credit card, 30 had both, a credit card and a mobile phone and 60 had both, a two wheeler and mobile phone and 10 had all three. How many candidates had none of the three?

    1. 0
    2. 20
    3. 10
    4. 18
    5. 25
  3. In a class of 40 students, 12 enrolled for both English and German. 22 enrolled for German. If the students of the class enrolled for at least one of the two subjects, then how many students enrolled for only English and not German?

    1. 30
    2. 10
    3. 18
    4. 28
    5. 32
  4. In a class 40% of the students enrolled for Math and 70% enrolled for Economics. If 15% of the students enrolled for both Math and Economics, what % of the students of the class did not enroll for either of the two subjects?

    1. 5%
    2. 15%
    3. 0%
    4. 25%
    5. None of these

Video Explanation

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