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Quantitative Aptitude

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Sequence and Series

Question
3 out of 30
 

Find out missing number.


6, 18, 3, 21, 7, 56, ?



A 8
B 9
C 63
D 64
E None of these

Ans. A Each term at an even place in the series is the product of its two adjacent terms.

Thus, if the missing term be x, then we have : 7 x x = 56 or x = 56 ÷ 7 = 8.

Sequence and Series Flashcard List

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