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1.
- A.
- B.
- C.
- D.
Answer: Option D
Explanation:
বক্সের ফাঁকা অংশের আয়তন =2^3_4/3π(1)^3
=8-4/3×22/7
=8-88/21
=(168-88)/21
=80/21
=8-4/3×22/7
=8-88/21
=(168-88)/21
=80/21
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