Page 16 - Services Selection Board (SSB) Interviews

12 Number Series Completion
The wrong number is 34650; 17325 × 3 = 51975 19. (d) The series is × 1 + 2, × 2 + 3, × 3 + 4, × 4
9. (d) The series is (+ 7 × 1), (+ 6 × 2), (+ 5 × 3), + 5, × 5 + 6, × 6 + 7. Correct answer 177
2
2
2
2
2
(+ 4 × 4), (+ 3 × 5), (+ 2 × 6). 20. (e) The series + (1) , + (3) , + (5) , + (7) , + (9) ,
2
The wrong number is 32; + (11) . Correct answer 171.
2
2
2
(9 + 6) × 2 = 15 × 2 = 30 21. (a) The series is × 1 + (1) , × 2 + (2) , × 3 + (3) ,
2
2
10. (b) The series is × 11, × 7, × 5, × 3, × 1. The × 4 + (4) , × 5 + (5) , × 6 + (6) 2
wrong no. is 34650; 17325 × 3 = 51975 22. (c) The series is
2
2
2
2
2
2
11. (a) The series is 2 , + 3 , + 4 , + 5 , + 6 , + 7 . 1 1
×
1
×
×
×
2
The wrong no. is 56; 32 + 5 = 32 + 25 = 57 × 2 + 2 , ×+ 1, 1.5 + 1.5, 2 + 2, 2.5 + 2.5, 3 + 3
12. (c) The series is × 1 + 1, × 2 + 2, × 3 + 3, × 4 + Correct answer is 6.75
4, × 5 + 5, × 6 + 6. 23. (d)
The wrong no. is 38; 12 × 3 + 3 = 36 + 3 = 39 24. (b) The series is × 1 + 1, × 1.5 + 1, × 2 + 1, × 2.5
13. (d) The series is × 7 – 1, × 6 – 1, × 5 – 1, × 4 – 1, + 1, × 3 + 1, …
× 3 – 1 25. (c) The series is + 12, – 24, + 36, – 48, + 60, ….
2
2
2
2
14. (e) The series is + 2 , + 4 , + 6 , + 8 + 10 2 26. (e) The series is × 2 – 5, × 2 – 10, × 2 – 15,
15. (a) The series is ÷ 5. × 2 – 20, × 2 – 25, ….
16. (b) The series is + 3, + 6, + 12, + 24, + 48, ….
27. (e) × 2.5 + 20.
17. (c) The series is × 1 + 1, × 2 + 2, × 3 + 3, × 4 +
4, × 5 + 5 28. (e) The given series is + (11 × 1), + (11 × 3),
+ (11 × 5), + (11 × 7), + (11 × 9). So next no.
18. (b) The series is is 302
1 1 1 1 1
× 2 − × 2, 2 − × 2, 2 − × 2, 2 − × 2, 2 − 2 29. (c) The given series is –
(9 × 9), – (9 × 8), – (9 × 7), – (9 × 6), – (9 × 5)
30. (c) The given series is
2
2
2
2
2
+ (14) , + (13) , + (12) , + (11) , + (10)
Concept Deviator
1. (c) 9 7 5 3 1 1/ 8 6 4 2 2/ 9 7 5 3 1/ 8 6 4 2 2/ 9 7 5 4. (b)
3 1/ 8 6 4 2/ 9 7 5 3/ 8 6 4 2 462 552 650 756 870 992 1122
2. (e) 24 ÷ 4 + 6 – 3 × 4 = 6 + 6 – 12 = 0
3. (c) +90 +98 – 106 + 114 – 122 + 130
32 49 83 151 287 559 1103
5. (d)
+ 17 + 34 –68 + 136 + 272 – 544

6. (a)

7. (e) 0 6 24 60 120 210 336

+ (6×1) + (6×3) – (6×6) + (6×10) + (6×15) – (6×21)

+ 2 + 3 + 4 + 5 + 6