The percent loss against selling an article for rupees 60 is as much as the percent gain against selling it for rupees 90 . Determine the rate percent of profit or loss . what is the cost price of the article? ( step by step explanation)
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ISI mark registration is mandatory for all the certifying products sold in India. The mark is meant for better quality and safety of the products. The Products having ISI indicate that products are in compliance with the Indian standard quality.
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