Question

If 7               16        x        90        171           292 Then,  2x 2 +   1 + x   = ?

In each of the following questions a number series is given.  One term of the series is denoted by 'x' . You have to calculate the value of  'x' and by using the value of  'x' ,  you have to replace the question mark (?) in the following questions :
A 3380
B 3750
C 3563
D 3404
E None of these
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