alleryএকটি হলের প্রত্যেক ব্যক্তি ক্রিকেট বা টেনিস পছন্দ করেন। 70 শতাংশ ক্রিকেট পছন্দ করেন এবং 55 শতাংশ টেনিস পছন্দ করেন। কত শতাংশ উভয়ই পছন্দ করেন?
A15
B20
C30
D25
Answer & Solution
Correct answer: D. 25
উভয় পছন্দের অংশটি হল 70 + 55 - 100 = 25 শতাংশ, কারণ পুরো হলটিই এদের সংযোগ নির্দেশ করে।
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