9, 27, 31, 155, 161, 1127, ?
ক
316
খ
1135
গ
1288
ঘ
2254
সঠিক উত্তর: 1135
The pattern is x 3, + 4, x 5, + 6, x 7,.....So, missing term = 1127 + 8 = 1135.