alleryপ্ৰতিটো পদক্ষেপতে দুগুণ কৰি এক যোগ কৰা হৈছে: 1, 3, 7, 15, 31। পৰৱৰ্তী সংখ্যাটো কি?
A62
B63
C61
D64
Answer & Solution
Correct answer: B. 63
প্ৰতিটো পদ হৈছে পূৰ্বৱৰ্তী পদৰ দুগুণ যোগ এক, গতিকে 31 x 2 + 1 = 63।
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