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

જો X અને Y એ બે બિન-ખાલી સમૂહ છે જેમ કે n(X) = 17, n(Y) = 23 અને n(X ∪ Y) = 38, તો n( X ∩ Y) છે

1
16
2
2
3
6
4
10
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