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Series and Odd Man out Practice Test 8

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Question : 4 of 16

Marks: +1, -0

6, 25, ?, 123, 214, 341

65
70
72
62
45

Solution:

Concept:

The series follows the rule: term

= n^3 - 2

, where

n

starts from

2

.

Explanation:

For

n = 2

:

2^3 - 2 = 6

.

For

n = 3

:

3^3 - 2 = 25

.

For the missing term,

n = 4

:

4^3 - 2 = 64 - 2 = 62

.

Check next terms:

5^3 - 2 = 123

,

6^3 - 2 = 214

, and

7^3 - 2 = 341

.

So the missing number is

62

.

Answer:

Option D:

62

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