Notes: Finding the cost price and Percentage Profit/Loss
Simple Interest (read only till simple interest: do not read compound interest and investment) – the formula used here is I = PRT instead of I = PRT/100 since they are changing R into a decimal first. Therefore, 100 is not needed any more...you can work this way in your exam as well.
Simple Interest 2 – again here the formula used is I = PRT
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