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A shirt costing Rs 500 is sold at a 20% discount. What is the selling price?
Rs 400
Rs 450
Rs 350
Rs 420
Rs 400
Since the discount is 20%, the selling price is 80% of the marked price. Simply calculate 80% of 500: 500├Ч0.8=400.
Marked Price (MP) = Rs 500, Discount Percentage = 20%
SP=MP├Ч(1тИТ100Discount%тАЛ)
Since the discount is 20%, the selling price is 80% of the marked price. Simply calculate 80% of 500: 500├Ч0.8=400.
Many students mistakenly add the discount amount to the original price instead of subtracting it, or they calculate 20% of 500 and incorrectly report that as the final answer.
Identify given variables
Identify the marked price MP=500 and the discount percentage D=20%.
MP=500,D=20%
Calculate discount amount
Calculate the monetary value of the discount by taking 20% of the marked price 500.
Discount=500├Ч10020тАЛ=100
Calculate selling price
Subtract the discount amount from the marked price to find the final selling price.
SP=500тИТ100=400
A is correct because subtracting the 20% discount (Rs 100) from the marked price (Rs 500) results in a selling price of Rs 400.
This concept of percentage change is identical to calculating Profit and Loss; just replace 'Discount' with 'Loss' and 'Marked Price' with 'Cost Price' to handle related problems.
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