Articles are bought at 5 for Rs.10 and sold at 6 for Rs.15 by a man. His gain percent is?

Appeared in: RRB Staff Nurse Mumbai-2015

Explanation

Option A: A 50% gain would mean the selling price is Rs. 3 (since CP is Rs. 2). The calculated selling price is Rs. 2.5, not Rs. 3. This error might occur if one incorrectly calculates the gain as Rs. 1 instead of Rs. 0.5.
Option B: A 40% gain on a CP of Rs. 2 would require a gain of Rs. 0.8, leading to an SP of Rs. 2.8. The actual SP is Rs. 2.5. This is a calculation error.
Option C: A 35% gain on a CP of Rs. 2 would require a gain of Rs. 0.7, leading to an SP of Rs. 2.7. The actual SP is Rs. 2.5. This is a calculation error.

Visual 1: Flowchart - A step-by-step flowchart illustrating the process: 1. Find CP of one unit. 2. Find SP of one unit. 3. Calculate Gain (SP-CP). 4. Apply formula (Gain/CP)*100 to find Gain %.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Calculation of profit and loss percentage as background academic context rather than a clinical decision trigger.
This question tests basic quantitative aptitude and numerical ability, which are essential skills for nurses.
Nurses frequently perform calculations related to medication dosages, IV drip rates, and patient intake/output, all of which require accuracy and a strong foundation in basic math.
What if the articles were sold at 4 for Rs. 10? In that case, the SP per article would be 10/4 = Rs. 2.5, which is the same as the original scenario, so the gain percent would remain 25%.

How to Approach the Question

First, identify the cost details and selling details from the question stem.
Calculate the Cost Price (CP) for a single unit or a convenient number of units.
Calculate the Selling Price (SP) for the same number of units.
Determine the gain by subtracting the CP from the SP (Gain = SP - CP).
Apply the formula for gain percentage: Gain % = (Gain / CP) * 100.
Select the option that matches your calculated percentage.

Concept Tested & Keywords

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