Question

In the following question, a number series is given with missing of one term. Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series.

$730,511,344,215,?$

• A. $125$
• B. $25$
• C. $36$
• D. $126$

Answer 1

The correct option is D $126$

In such question you should think why this series is repeating. There will be one trend which should generate the whole series.

What we do observe is follow.

$\Rightarrow 9^3+1=730\Rightarrow 8^3-1=511\Rightarrow 7^3+1=344\Rightarrow 6^3-1=215\Rightarrow 5^3+1=126$.