SAT Math Question of the Day

Math Category: Algebraic Sets:

Q: If Set X = {1,2,5,7} and Set Y = {1,3,5,6,7,9}, then what is the union of Set X and Set Y?

  1. {1,2,3,5,7,9}
  2. {1,2,3,4,6,7,9}
  3. {1,3,5,6,7,8,9}
  4. {1,2,3,5,6,7,9}
  5. {1,2,3,4,5,7,9}