CAT 2022 · Slot 2Quantitative AbilityProgressions and SeriesMEDIUM+3 / −1

Consider the arithmetic progression 3, 7, 11, ... and let $A_n$ denote the sum of the first n terms of this progression. Then the value of $\frac{1}{25} \sum_{n=1}^{25} A_{n}$ is

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CAT 2022 · Slot 2Quantitative AbilityProgressions and SeriesMEDIUM+3 / −1

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Attempt CAT 2022 Slot 2 Question Paper with real exam interface and instant grading.

Consider the arithmetic progression 3, 7, 11, ... and let AnA_nAn​ denote the sum of the first n terms of this progression. Then the value of 125∑n=125An\frac{1}{25} \sum_{n=1}^{25} A_{n}251​∑n=125​An​ is