alleryA–D হল স্বতন্ত্র সংখ্যা 1–9। AB+CD=BA দুই-সংখ্যার সংখ্যা ব্যবহার করে; A+D=12 এবং B>D। কোন সংখ্যাটি C?
A1
B2
C4
D8
Answer & Solution
Correct answer: B. 2
দুটি পাটিগণিত শর্ত ABCD এর জন্য 4618 বা 5827 ছেড়ে যায়;
B>D 5827 নির্বাচন করে, C=2 দেয়।
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