Directions (Q. 1 – 5): What should come in place of question mark (?) in the following number series?
1. 1, 4, 12, 24, 96, 288, 576, ? (4)
(1) 2064 (2) 1728 (3) 1152 (4) 2304 (5) 2404
2. 21, 31, 43, 57, 73, ? (2)
(1) 87 (2) 91 (3) 103 (4) 107 (5) 121
3. 1, 15, 102, 728, 5840, ? (4)
(1) 46280 (2) 48640 (3) 50330 (4) 52578 (5) 58400
4. 12, 30, 60, 108, 180, 282, ? (2)
(1) 366 (2) 420 (3) 444 (4) 496 (5) 504
5. 92, 83, 75, 67, 61, 53, 47, 39, ? (4)
(1) 27 (2) 29 (3) 31 (4) 33 (5) 35
