allerya # b-কে a এবং b এর গুণফল থেকে a এর বিয়োগফল হিসেবে সংজ্ঞায়িত করা হলো। 6 # 4 গণনা করুন।
A24
B20
C18
D10
Answer & Solution
Correct answer: C. 18
6 × 4 = 24 এবং 24 − 6 = 18।
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