If five works are selected for the exhibit, which of the following must be true?
A. Exactly two of the works selected are large.
B. Exactly three small paintings are selected.
C. Exactly four of the works selected are small
D. Both sculptures are selected.
DUIBAমানসিক দক্ষতা(IQ)বিশ্লেষণমুলক ও সিদ্ধান্ত গ্রহণের ক্ষমতাIQ-3 (Topic Practice)DU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
Explanation: এই puzzle টির condition গুলো হল: 1. কমপক্ষে একটি Sculpture select করতেই হবে। 2. কমপক্ষে একটি Large work select করতেই হবে। 3. 3টি Large work একসাথে select করা যাবেনা। 4. 4টি Small work একসাথে select করা যাবেনা। 5. Small Sculpture-টি select করা হলে কমপক্ষে একটি Small Painting select করতেই হবে। 5-টি work কে select করা হলে এদের মাঝে 4-টি small work থাকতে পারবেনা [Condition 4]. অতএব কমপক্ষে 2-টি large works থাকতে হবে। আবার 3-টি large work থাকলে Condition 3 violated হয়ে যায়। Therefore, there must be exactly 2 large works.
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