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Home > College Board Tests > The Official SAT Question of the Day

Today's Explanation

Thursday, November 5

Correct Answer: C

  • Here's Why:

    Let n stand for the number of students who belong to both clubs. The 15 members of the math club can be broken down into two groups: those who are in both clubs (there are n students in this category) and those who are in the math club only (there are 15 – n students in this category).

    The 12 members of the chess club can also be broken down into two groups: n students who are in both clubs and 12 – n students who are in the chess club only.

    Since a total of 13 students belong to only one of the two clubs, you know that (15 – n) + (12 – n) = 13. Solving this equation gives n = 7, so 7 students belong to both clubs.

  • Difficulty: Medium
  • Question Type: Standard Multiple Choice
    (Mathematics)

Today's Responses

  • Section:
    Mathematics
  • Responses:
    (Total So Far)
    232,755
Today's Responses - Pie Chart
  • Correct: 33%
  • Incorrect: 67%

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