Manish bought 1000 pencils for Rs.3000 and sold 200 of these at the gain of 5%.At what rate gain per cent he must sell the remaining pencils so as to get 15% of the whole transaction?
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/a-man-purchased-150-pens-at-the-rate-of-rs-12-per-pen-he-so/math/6373748
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https://www.meritnation.com/ask-answer/question/a-man-purchased-150-pens-at-the-rate-of-rs-12-per-pen-he-so/math/6373748
Regards