alleryবাইরের অংশ বাদ দিলে, তিনটি সেটের একটি ভেন চিত্রে বৃত্তগুলির ভেতরে কতগুলি অঞ্চল থাকে?
A6
B8
C7
D9
Answer & Solution
Correct answer: C. 7
তিনটি সেট মোট 8টি অঞ্চল দেয়; বাইরের অঞ্চলটি বাদ দিলে বৃত্তগুলির ভেতরে 7টি অঞ্চল অবশিষ্ট থাকে।
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