alleryসংহতি A, B, C-ৰ ক্ৰমে 20, 15, 10 টা সদস্য আছে। A∩B-ৰ 5 টা, B∩C-ৰ 3 টা, A∩C-ৰ 4 টা, A∩B∩C-ৰ 2 টা সদস্য আছে। |A∪B∪C| নিৰ্ণয় কৰক।
A35
B33
C37
D45
Answer & Solution
Correct answer: A. 35
যোগফল 45, যাৰ পৰা যোৰ ওপৰা-ওপৰি 12 বিয়োগ কৰিলে 33 পোৱা যায়, তাৰ পিছত তিনিটাৰ ওপৰা-ওপৰি 2 যোগ কৰিলে 35 পোৱা যায়।
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