allery৬০ জন ব্যক্তিৰ এটা দলত ৩৫ জনে চাহ ভাল পায়, ৩০ জনে কফি ভাল পায় আৰু ১০ জনে এটাও ভাল নাপায়। কিমানজনে দুয়োটা ভাল পায়?
A25
B10
C15
D20
Answer & Solution
Correct answer: C. 15
৫০ জন ব্যক্তিয়ে কমেও এটা পানীয় ভাল পায়, গতিকে দুয়োটা ভাল পোৱা লোক = 35 + 30 - 50 = 15।
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