Question

If   204       196       223     x   284 Then, what is the average of the numbers of the above series?

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 213.2
B 146.2
C 163.8
D 292.5
E None of these
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