Reena saves Rs 300 in the first month and increases her saving by Rs 20 each month

MATHEMATICS · Single correct · A Level · Mathematics · Sequences and series · Sequences and series

Problem

Reena saves Rs 300 in the first month and increases her saving by Rs 20 each month. After some months she has saved a total of Rs 10,500. How many months did she save? (a) 2020 (b) 2626 (c) 1919 (d) 2121

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