alleryA–F হল ছয়টি স্বতন্ত্র অশূন্য সংখ্যা। দুই অঙ্কের সংখ্যা হিসাবে, AB=2×CD এবং EF=3×CD; B+D=14। FE খুঁজুন।
A54
B81
C36
D45
Answer & Solution
Correct answer: D. 45
CD যোগফলের আগে শুধুমাত্র 16,18,19 বা 27 হতে পারে;
B+D=14 18 এবং FE=45 নির্বাচন করে।
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