2, 5, 9, 19, 37, ?
ক
75
খ
76
গ
78
ঘ
73
সঠিক উত্তর: 75
Here, 2 × 2 + 1 = 5 5 × 2 - 1 = 9 9 × 2 + 1 = 19 19 × 2 - 1 = 37 37 × 2 + 1 = 75