railway RRB Technician Grade 1 Mock Test 2024 Mathematics Sets Operations on Sets

जर X आणि Y हे दोन रिक्त नसलेले संच आहेत जसे की n(X) = 17, n(Y) = 23 आणि n(X ∪ Y) = 38, तर n( X ∩ Y) किती आहे?

1
16
2
2
3
6
4
10
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