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Mathematics
Profit and Loss
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NTPC Graduate Tier 1 2025 Shift-1 📅 06 May, 2025

A vendor bought lemons at 7 for ₹1. How many lemons must he sell for ₹1 to gain 75%?

A
8
B
4
C
5
D
6
Result Summary
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NTPC Graduate Tier 1
2025 • 06 May, 2025 • Shift-1
A vendor bought lemons at 7 for ₹1. How many lemons must he sell for ₹1 to gain 75%?
Correct Answer
4
Unit Cost Calculation: The absolute cost price (CP) of a single lemon is calculated as ₹1/7.Desired Selling Price: To achieve a target profit margin of 75%, t......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Mathematics
Chapter -
Ref. Topic Profit and Loss
Pg. No -
💡 Analysis & Explanation
Unit Cost Calculation ▼
The absolute cost price (CP) of a single lemon is calculated as ₹1/7.
Desired Selling Price ▼
To achieve a target profit margin of 75%, the selling price must equal 175% of the cost price. This translates to (1/7) × (175/100) = (1/7) × (7/4) = ₹1/4 per lemon.
Revenue Equivalence ▼
If one lemon is to be sold for ₹1/4, it directly implies that 4 lemons will yield exactly ₹1.
Conclusion ▼
Thus, the vendor must sell 4 lemons for a rupee to secure the required profit.
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