A) 10
B) 8
C) 9
D) None of these
Correct Answer: B
Solution :
The resulting progression will have \[n+2\] terms with 2 as the first term and 38 as the last term. Therefore the sum of the progression \[=\frac{n+2}{2}(2+38)=20(n+2)\]. By hypothesis, \[20(n+2)=200\]\[\Rightarrow \]\[n=8\].
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