Question:medium
In an A.P., if the 5th term is \( \frac{1}{7} \) and the 7th term is \( \frac{1}{5} \), then the sum of the first 35 terms is ______.
In an A.P., if the 5th term is \( \frac{1}{7} \) and the 7th term is \( \frac{1}{5} \), then the sum of the first 35 terms is ______.
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When two non-consecutive terms of an A.P. are given, subtract their equations to quickly eliminate $a$ and find $d$. Then substitute back to find $a$.
Updated On: Apr 30, 2026
- $9$
- $18$
- $36$
- $72$
- $83$
Show Solution
The Correct Option is B
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