A medical store purchase manager buys a digital thermometer for ₹200 and sells it to a patient for ₹260. What is the profit percentage earned by the store?

1. A

   20%

2. B

   25%

3. C

   30%

4. D

   60%

Appeared in: NORCET 8 Prelims-2025

Explanation

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• The fundamental formula for profit percentage is: (Profit / Cost Price) × 100.
• First, the absolute profit is calculated by subtracting the cost price from the selling price (₹260 - ₹200 = ₹60).
• The profit percentage is then found by dividing the profit (₹60) by the original cost price (₹200), which equals 0.3.
• Finally, multiplying this decimal by 100 converts it to a percentage (0.3 × 100 = 30%).

Why Other Options Were Wrong

• Option A: A 20% profit would mean the profit amount was ₹40 (20% of ₹200), not ₹60.
• Option B: A 25% profit would mean the profit amount was ₹50 (25% of ₹200), not ₹60.
• Option D: This value represents the absolute profit in rupees (₹60), not the profit percentage.

Related Visual

• Visual 1: Infographic - A simple graphic illustrating the formula for profit percentage: Profit % = [(SP - CP) / CP] x 100, with each component clearly labeled.

Clinical Relevance

• Nursing practice connection: Use the key finding related to Profit and Loss Percentage Calculation to guide bedside assessment, documentation, and the next nursing action.
• While this is a mathematics question, understanding basic financial calculations is crucial for nurses in administrative or managerial roles.
• Nurse managers may be responsible for budgeting, purchasing supplies, and ensuring the financial health of their unit or clinic.
• What if the store wanted to make a 40% profit? The selling price would need to be calculated as: Cost Price + (Cost Price × Profit Percentage) = ₹200 + (₹200 × 0.40) = ₹200 + ₹80 = ₹280.

How to Approach the Question

• First, identify the key financial figures given in the problem: the Cost Price (CP) and the Selling Price (SP).
• Next, calculate the absolute profit by subtracting the CP from the SP.
• Recall the formula for profit percentage, which is (Profit / Cost Price) × 100.
• Substitute the calculated profit and the given cost price into the formula.
• Perform the division and then multiply by 100 to get the final percentage.
• Compare your result with the given options to find the correct answer.

Concept Tested & Keywords

• Concept Tested: Profit and Loss Percentage Calculation
• Stem keywords: medical store, digital thermometer, buys for ₹200, sells for ₹260, profit percentage
• Lead-in keywords: What is

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