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Series and Odd Man out Practice Test 2

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Question : 6 of 40

Marks: +1, -0

12, 18, 27, 90, 270, 945, 3780

945
270
27
18
12

Solution:

Concept:

The series follows a pattern of increasing multipliers.

Explanation:

The multipliers increase by

0.5

:

\times 1.5, \times 2, \times 2.5, \times 3, \times 3.5, \times 4

.

Starting from

12

:

12 \times 1.5 = 18

.

Next should be

18 \times 2 = 36

, but the series has

27

.

Using

36

:

36 \times 2.5 = 90

.

Then

90 \times 3 = 270

.

Then

270 \times 3.5 = 945

.

Then

945 \times 4 = 3780

.

So,

27

is the wrong term; it should be

36

.

Answer:

27

(Option C).

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