Verbal Reasoning - Series Completion

Directions to Solve

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.


1.
1, 1, 2, 6, 24, ?, 720
100
104
108
120
Answer: Option
Explanation:

The pattern is x 1, x 2, x 3, x 4,.....

So, missing term = 24 x 5 = 120.


2.
2, 15, 4, 12, 6, 7, ?, ?
8, 8
8, 0
3, 8
None of these
Answer: Option
Explanation:

Let the missing terms of the series be x1 and x2.

Thus, the sequence 2, 15, 4, 12, 6, 7, x1 x2 is a combination of two series :

I. 2, 4, 6, x1 and II. 15, 12, 7, x2I consists of consecutive even numbers.

So, missing term, x1 = 8.

The pattern in II is - 3, - 5,......So, missing term, x2 = 7 - 7 = 0.


3.
4832, 5840, 6848, ?
7815
7846
7856
7887
Answer: Option
Explanation:

The pattern is + 1008.

So, missing term - 6848 + 1008 = 7856.


4.
5824, 5242, ?, 4247, 3823
4467
4718
4856
5164
Answer: Option
Explanation:

Each term in the series is obtained by subtracting from the preceding term the number

formed by the first three digits of the preceding term.

So, missing term = 5242 - 524 = 4718.


5.
2, 8, 16, 128, ?
2042
2046
2048
2056
Answer: Option
Explanation:

Each term in the series, except the first two terms, is the product of the preceding two terms.

So, missing term = 16 x 128 = 2048.