Question
The sum of the first hundred terms of an A.P. is $x$ and the sum of the hundred terms starting from the third term is $y$. Then the common difference is(A) $\frac{y-x}{2}$(B) $\frac{y-x}{50}$(C) $\frac{y-x}{100}$(D) $\frac{y-x}{200}$
Step 1
Hence, the third term is $a+2d$, the fourth term is $a+3d$, and so on. Show more…
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