If A ∁ B and n (A) = 18, n (B) = 40, then n (A ∩ B) is

by
Question:

If A ∁ B and n (A) = 18, n (B) = 40, then n (A ∩ B) is

A.

18

B.

22

C.

58

D.

40

Answer» a. 18

Note: The above multiple-choice question is for all general and Competitive Exams in India.