alleryꯍꯣꯁ꯭ꯇꯦꯜ ꯑꯃꯗꯥ, 60 ꯃꯍꯩꯔꯣꯌꯁꯤꯡꯅꯥ ꯅꯨꯃꯤꯠ ꯈꯨꯗꯤꯡꯒꯤ A, 50ꯅꯥ ꯅꯨꯃꯤꯠ ꯈꯨꯗꯤꯡꯒꯤ B ꯄꯥꯔꯤ, ꯑꯃꯁꯨꯡ 20ꯅꯥ ꯑꯅꯤꯃꯛ ꯄꯥꯔꯤ꯫ ꯅꯨꯃꯤꯠ ꯈꯨꯗꯤꯡꯒꯤ ONLY A ꯀꯌꯥ ꯄꯥꯔꯤꯕꯒꯦ?
A20
B30
C35
D40
Answer & Solution
Correct answer: D. 40
ꯅꯨꯃꯤꯠ ꯈꯨꯗꯤꯡꯒꯤ A = n(A) - n(A ∩ B) = 60 - 20 = 40 ꯈꯛꯇꯅꯤ꯫
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