alleryदुप्पट करात आनी दर एका पांवड्यार एक जोडात: 1, 3, 7, 15, 31. फुडें खंयचो आंकडो आसा?
A62
B63
C61
D64
Answer & Solution
Correct answer: B. 63
दरेक पद आदल्या प्लस एकाच्या दुप्पट आसता, देखून 31 x 2 + 1 = 63.
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