alleryഇരട്ടിയാക്കി ഓരോ ഘട്ടത്തിലും ഒന്ന് ചേർക്കുക: 1, 3, 7, 15, 31. അടുത്ത നമ്പർ ഏതാണ്?
A62
B63
C61
D64
Answer & Solution
Correct answer: B. 63
ഓരോ പദവും മുമ്പത്തേതിന്റെ ഇരട്ടിയാണ് പ്ലസ് വൺ, അതിനാൽ 31 x 2 + 1 = 63.
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