Question 31
SetsP = {2, 1, 3, 9, ½}, Q = {1, 2½, 3, 7} and R = {5, 4, 2½}
Find P∩Q∩R.
- A.{2½}
- B.∅
- C.{1, 3, 7}
- D.{4}
- E.{5, 7, 9}
Show the answer and explanation
Answer: B (∅)
Explanation
No element is in all three sets (R has none of P's elements), so the intersection is empty.