alleryꯑꯣꯏꯒꯅꯤ꯫ ꯀꯣꯗ ABCD ꯑꯁꯤ ꯇꯣꯉꯥꯅꯕꯥ ꯗꯤꯖꯤꯠꯁꯤꯡ 1–6 ꯁꯤꯖꯤꯟꯅꯩ꯫ C=2D ꯑꯃꯁꯨꯡ A+C=B+D꯫ ꯗꯤꯖꯤꯠ ꯑꯅꯤꯒꯤ ꯃꯁꯤꯡ AB ꯑꯃꯁꯨꯡ CD ꯑꯁꯤ 24ꯅꯥ ꯈꯦꯠꯅꯩ, AB ꯍꯦꯟꯅꯥ ꯆꯥꯎꯏ꯫ A×C+B×D ꯍꯥꯌꯅꯥ ꯈꯉꯅꯕꯥ꯫
A13
B11
C15
D17
Answer & Solution
Correct answer: A. 13
ꯑꯣꯏꯒꯅꯤ꯫
C=2D ꯊꯝꯕꯅꯥ B=A+D ꯄꯤ꯫
ꯑꯗꯨꯗꯒꯤ AB−CD=11A−20D=24꯫
D=1,2,3 ꯑꯃꯁꯨꯡ ꯇꯣꯉꯥꯅꯕꯥ ꯗꯤꯖꯤꯠ 1–6ꯒꯥ ꯂꯣꯌꯅꯅꯥ A=4,D=1 ꯈꯛꯇꯅꯥ ꯊꯕꯛ ꯇꯧꯏ꯫
ꯀꯣꯗ ꯑꯁꯤ 4521 ꯑꯃꯁꯨꯡ A×C+B×D=8+5=13ꯅꯤ꯫
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