Directions (1-5): What will come in place of question mark (?) in the following number series?
1. 21, 23, 37, 71, 133, ? (2)
- (1) 321
- (2) 231
- (3) 319
- (4) 237
- (5) 235
2. 46, 267, 462, 631, 774, ? (4)
- (1) 381
- (2) 895
- (3) 978
- (4) 891
- (5) 869
3. 16, 137, 866, 915, 1040, ? (1)
- (1) 1049
- (2) 1094
- (3) 949
- (4) 849
- (5) 1069
4. 2890, ?, 1162, 874, 730, 658 (2)
- (1) 1684
- (2) 1738
- (3) 1784
- (4) 1672
- (5) 1584
5. 1548, 516, 129, 43, ? (2)
- (1) 11
- (2) 10.75
- (3) 9.5
- (4) 12
- (5) None of these