Exercise"Forgiveness is a virtue of the brave."
- Indira Gandhi
|
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
|
| 41. |
2,3,8,27, 112,? |
Answer: Option C
Explanation:
The pattern is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4,..... So, missing term = 112 x 5 + 5 = 565.
|
| 42. |
6, 17, 39, 72, ? |
Answer: Option A
Explanation:
The pattern is + 11, + 22, + 33, ..... So, missing term = 72 + 44 = 116.
|
| 43. |
20, 20, 19, 16, 17, 13, 14, 11, ?, ? |
Answer: Option D
Explanation:
Let the missing terms of the series be x1 and x2. Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11, xv x2 is a combination of two series : I. 20, 19, 17, 14, x1 and II. 20, 16, 13, 11, x2 The pattern in I is - 1, - 2, - 3,......So, missing term, x1 = 14 - 4 = 10. The pattern in II is - 4, - 3, - 2,......So, missing term, x2 = 11 - 1 = 10.
|
| 44. |
24, 60, 120, 210, ? |
Answer: Option C
Explanation:
The pattern is + 36, + 60, + 90,.....i.e. + [6 x (6 + 0)], + [6 x (6 + 4)], + [6 x (6 + 9)],... So, missing term = 210 + [6 x (6 + 15)] = 210 + 126 = 336.
|
| 45. |
625, 5, 125, 25, 25, ?, 5 |
Answer: Option B
Explanation:
The given sequence is a combination of two series : I. 625, 125, 25, 5 and II. 5, 25, ? The pattern in I is ÷ 5, while that in II is x 5. So, missing term = 25 x 5 = 125.
|
|
|
