alleryहें . कोड ABCD हातूंत वेगवेगळे अंक 1–6 वापरतात. C=2D आनी A+C=B+D. AB आनी CD हे दोन अंकांचे आंकडे 24 इतले फरक आसतात, जाल्यार AB व्हड आसतात. A×C+B×D सोदून काडात.
A13
B11
C15
D17
Answer & Solution
Correct answer: A. 13
हें .
C=2D घालून B=A+D मेळटा.
मागीर AB−CD=11A−20D=24.
D=1,2,3 आनी वेगवेगळे अंक 1–6 आसल्यार फकत A=4,D=1 काम करता.
कोड 4521 आनी A×C+B×D=8+5=13 असो आसा.
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