alleryযদি 45 জন ব্যক্তি চা পছন্দ করেন এবং তাঁদের মধ্যে 18 জন কফিও পছন্দ করেন, তবে কতজন চা পছন্দ করেন কিন্তু কফি পছন্দ করেন না?
A33
B18
C27
D63
Answer & Solution
Correct answer: C. 27
কেবল চা পছন্দ করা ব্যক্তিরা চায়ের বৃত্তে কিন্তু সাধারণ অংশের বাইরে রয়েছেন: 45 - 18 = 27।
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