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Quantitative Aptitude

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Sequence and Series

Question
4 out of 30
 

Find out missing number.


2, 15, 4, 12, 6, 7, ?, ?



A 8, 8
B 8, 0
C 3, 8
D None of these
E 8,4

Ans. B 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.

Sequence and Series Flashcard List

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