SAT Math Question of the Day

Math Category: Algebraic Sets:

Q: Set C = {3,5,9} and Set D = {2,3,4,7}. What is the intersection of Set C and Set D?

  1. {2}
  2. {3}
  3. {4}
  4. {5}
  5. {7}

UNANSWERED.

The correct answer is B.

A: {3} is the correct answer. To find the intersection of 2 sets, look for what numbers are listed in both sets. 3 is the only number that occurs in both Set C and Set D, so that is the intersection of Set C and Set D.