alleryএখন পুথিভঁৰালত ৯০ জন সদস্য আছে। ৫৫ জনে কল্পকাহিনী (fiction), ৪৮ জনে বিজ্ঞান (science) আৰু ১৩ জনে এটাও ধাৰলৈ নলয়। কিমানজনে দুয়োবিধ ধাৰলৈ লয়?
A22
B30
C26
D34
Answer & Solution
Correct answer: C. 26
৭৭ জন সদস্যই কমেও এবিধ ধাৰলৈ লয়, গতিকে উমৈহতীয়া (overlap) হ'ল 55 + 48 - 77 = 26।
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