allery2, 6, 18, 54 অনুক্রমটির সাধারণ অনুপাত কত?
A4
B3
C2
D9
Answer & Solution
Correct answer: B. 3
প্রতিটি পদ তার পূর্ববর্তী পদের তিন গুণ, উদাহরণস্বরূপ 6 / 2 = 3।
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