Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Number System Quick Math
If A and B are two sets such that n(A) = 27, n(B) = 35 and n(A ∪ B) = 50, find n(A ∩ B).
1
21
2
12
3
11
4
More than one of the above
5
None of the above