If a shopkeeper is selling W gram of salt in 1 dollar he will face r% loss. How much salt he should sell in grams to make r% profit. Assume weighing and packaging price is zero.
I would recommend rewording the three problems: percentage profit:4, 5 and 6. It would help to improve clarity and understanding.
Does this problem require the percentage profit on the other sales (i.e. not the initial W sales involving r% loss) in order to determine the quantity required to make the the overall r% profit target? Similar to the previous problem, Percentage Profit :3. Thanks.
Extract leading non-zero digit
So many choices
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