alleryପ୍ରତ୍ୟେକ ପଦକ୍ଷେପରେ ଦୁଇଗୁଣ କରି ଏକ ଯୋଗ କରନ୍ତୁ: 1, 3, 7, 15, 31। ପରବର୍ତ୍ତୀ ସଂଖ୍ୟାଟି କେଉଁଟି?
A62
B63
C61
D64
Answer & Solution
Correct answer: B. 63
ପ୍ରତ୍ୟେକ ପଦ ପୂର୍ବ ପଦର ଦୁଇଗୁଣରୁ ଏକ ଅଧିକ, ତେଣୁ 31 x 2 + 1 = 63।
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