Directions (1-10): In the following questions two equations numbered I and II are given. You have to solve both the equations and–
Given answer:
Directions (11-15): Find the value of ‘?’ in the given number series.
Q11. 2, 28, 252, 1008, 3150, 7740, ?
(a) 38697
(b) 17306
(c) 32704
(d) 16758
(e) 16856
Q12. 15, 25, 40, 130, ?, 2560
(a) 500
(b) 520
(c) 490
(d) 480
(e) None of these
Q13. 124, 112, 176, 420, 1488, ?
(a) 8568
(b) 7140
(c) 5712
(d) 6150
(e) None of these
Q14. 8484, 4248, 2112, 1074, 513, ?
(a) 201
(b) 280.5
(c) 256.5
(d) 171
(e) None of these
Q15. 6, 13, 38, ?, 532, 2675
(a) 129
(b) 123
(c) 172
(d) 164
(e) None of these