Mathematics
If the sum of the first \(2n\) terms of the A.P. \(2,5,8\ldots\ldots\)
is equal to the sum of the first \(n\) terms of the A.P. 57,59 ,
\(61,\ldots\ldots.\). then \(n\) equals
A
100
B
12
C
11
D
13
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