12 : 35 :: 16 : ?
ক
32
খ
48
গ
49
ঘ
63
সঠিক উত্তর: 63
First term = 6*2 = 12.Second term = 62 - 1 = 35.
Third term = 8*2 = 16.
Fourth term = 82 - 1 = 63.