Directions (Q. 1 – 5): what should come in place of question mark (?) in the following number series?
1. 18, 99, 682, 5443, ? (1)
(1) 48972 (2) 48963 (3) 48975 (4) 48948 (5) 48682
2. 1324, 1721, 2190, 2737, 3368, ? (2)
(1) 3986 (2) 4089 (3) 4136 (4) 4290 (5) 4068
3. 363, 234, 141, 78, 39, 18, ? (4)
(1) 12 (2) 11 (3) 10 (4) 9 (5) 8
4. 665, 463, 307, 191, 109, ? (3)
(1) 79 (2) 69 (3) 55 (4) 51 (5) 47
5. 210, 336, 504, 720, 990, 1320, ? (3)
(1) 1651 (2) 1688 (3) 1716 (4) 1794 (5) 1720