question_answer

Direction: What will come in place of the question mark (?) in the following number series?

10         30         68         130       ?           350

A)  225                             

B)  250         

C)  242                             

D)  222         

E)  None of these

Correct Answer: D

Solution :

 The series is \[{{2}^{3}}+2,{{3}^{3}}+3,{{4}^{3}}+4,{{5}^{3}}+5,{{6}^{3}}+6,{{7}^{3}}+7,...\]