9 দিয়ে বিভাজ্য 3 অঙ্কবিশিষ্ট একটি সংখ্যার প্রথম অঙ্ক 3, তৃতীয় অঙ্ক 8 হলে মধ্যম অঙ্কটি কত?
A. 6
B. 7
C. 8
D. 9
সঠিক উত্তরঃ
B.
7
Explanation:
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