alleryꯃꯍꯩꯔꯣꯏ 100 ꯂꯩꯔꯤ꯫ 60ꯅꯥ ꯀ꯭ꯔꯤꯀꯦꯠ ꯁꯥꯟꯅꯩ, 50ꯅꯥ ꯐꯨꯇꯕꯣꯜ ꯁꯥꯟꯅꯩ, ꯑꯃꯁꯨꯡ 20ꯅꯥ ꯑꯅꯤꯃꯛ ꯁꯥꯟꯅꯩ꯫ ꯀ꯭ꯔꯤꯀꯦꯠ ꯁꯥꯟꯅꯗꯕꯥ ꯑꯃꯁꯨꯡ ꯐꯨꯇꯕꯣꯜ ꯁꯥꯟꯅꯗꯕꯥ ꯃꯍꯩꯔꯣꯏ ꯀꯌꯥ ꯂꯩꯕꯒꯦ?
A10
B20
C30
D40
Answer & Solution
Correct answer: A. 10
ꯌꯨꯅꯤꯌꯟ = n(C) + n(F) - n(C ∩ F) = 60 + 50 - 20 = 90. ꯑꯅꯤꯃꯛꯇꯥ ꯁꯥꯟꯅꯔꯤꯕꯥ ꯃꯍꯩꯔꯣꯏꯁꯤꯡ = 100 - 90 = 10.
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