If the marked price of an article is Rs. 400/- and its sale price is Rs. 340/-, Find out the percentage of discount.

Appeared in: OSSSC Nursing Officer-2021

Explanation

The formula to calculate discount percentage is: [(Marked Price - Sale Price) / Marked Price] × 100.
First, calculate the discount amount: Rs. 400 (Marked Price) - Rs. 340 (Sale Price) = Rs. 60.
Next, divide the discount amount by the marked price and multiply by 100 to get the percentage: (Rs. 60 / Rs. 400) × 100 = 15%.

Option A: A 10% discount on Rs. 400 would be Rs. 40, resulting in a sale price of Rs. 360, not Rs. 340.
Option C: A 12% discount on Rs. 400 would be Rs. 48, resulting in a sale price of Rs. 352, not Rs. 340.
Option D: An 18% discount on Rs. 400 would be Rs. 72, resulting in a sale price of Rs. 328, not Rs. 340.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Calculating discount percentage based on marked price and sale price as background academic context rather than a clinical decision trigger.
While this is a general aptitude question, strong numeracy skills are essential for nurses in daily practice for tasks like medication dosage calculations, titrating IV drips, and interpreting patient data.
Understanding percentages is fundamental for accurately calculating drug concentrations, body mass index (BMI), and changes in a patient's weight or lab values.
What if? - If the discount was 20%, the discount amount would be 0.20 × 400 = Rs. 80, and the new sale price would be Rs. 400 - Rs. 80 = Rs. 320.

How to Approach the Question

First, identify the key information provided in the question: the marked price (original price) and the sale price (discounted price).
Recall the two-step process for finding the discount percentage.
Step 1: Calculate the discount amount by subtracting the sale price from the marked price.
Step 2: Calculate the discount percentage by dividing the discount amount by the original marked price and then multiplying the result by 100.
Execute the calculation: (400 - 340) = 60. Then, (60 / 400) * 100 = 15.
Compare your calculated percentage with the given options to find the correct answer.

Concept Tested & Keywords

Concept Tested: Calculating discount percentage based on marked price and sale price.
Stem keywords: marked price, sale price, percentage of discount
Lead-in keywords: Find out

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