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Quantitative Aptitude
Profit and Loss
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NTPC Graduate Tier 1 2025 Shift-3 📅 05 Jun, 2025

A vendor sold 4 chocolates for ₹1, thereby gaining 100%. How many chocolates did he buy for ₹1?

A
12
B
14
C
8
D
10
Result Summary
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APEDIA

NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-3
A vendor sold 4 chocolates for ₹1, thereby gaining 100%. How many chocolates did he buy for ₹1?
Correct Answer
8
[Transaction Baseline Setup]: The problem provides the final Selling Price (SP) parameters: 4 individual chocolates are sold for a total of ₹1. Therefore, the......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Quantitative Aptitude
Chapter -
Ref. Topic Profit and Loss
Pg. No -
💡 Analysis & Explanation
[Transaction Baseline Setup] ▼
The problem provides the final Selling Price (SP) parameters: 4 individual chocolates are sold for a total of ₹1. Therefore, the SP of a single chocolate is ₹(1/4).
[Profit Margin Integration] ▼
The vendor enjoys a massive 100% profit on this transaction. Mathematically, a 100% profit means the Selling Price is exactly double the Cost Price (SP = CP + 100% of CP = 2CP).
[Cost Price Deduction] ▼
Since SP = 2 × CP, we substitute the known SP: (1/4) = 2 × CP. Solving for CP gives us CP = 1/8. This means the vendor purchased one single chocolate for ₹(1/8).
[Final Quantity Extrapolation] ▼
If one chocolate costs ₹(1/8), then with a total capital of ₹1, the vendor can acquire 1 ÷ (1/8) = 8 chocolates.
Conclusion ▼
He originally bought exactly 8 chocolates for a single rupee.
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