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Series and Odd Man out Practice Test 4

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Question : 14 of 40

Marks: +1, -0

2, 9, 28, 65, 126, 216, 344

38
217
356
66
125

Solution:

Concept:

The series follows the pattern

n^3+1

, where

n

is the term position.

Explanation:

Check each term:

1^3+1=2

2^3+1=9

3^3+1=28

4^3+1=65

5^3+1=126

The next term should be

6^3+1=217

, but

216

is given.

Also,

7^3+1=344

matches the pattern.

So

216

is the wrong term and should be replaced by

217

.

Answer:

Option B:

217

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