Example 13 - Chapter 7 Class 7 Comparing Quantities

Last updated at August 4, 2026 by

Example 13 - Selling price of a toy car is Rs 540. If the profit made - Examples

part 2 - Example 13 - Examples - Serial order wise - Chapter 7 Class 7 Comparing Quantities
part 3 - Example 13 - Examples - Serial order wise - Chapter 7 Class 7 Comparing Quantities

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Example 13 Selling price of a toy car is Rs 540. If the profit made by shopkeeper is 20%, what is the cost price of this toy? S.P = Rs 540 C.P = ? Profit percentage = 20% Now, Profit = S.P āˆ’ C.P Profit = 540 āˆ’ C.P Also, Profit percentage = 20% š‘ƒš‘Ÿš‘œš‘“š‘–š‘”/(š¶.š‘ƒ) Ɨ 100 = 20 (šŸ“šŸ’šŸŽ āˆ’ š‘Ŗ.š‘·)/(š‘Ŗ.š‘·) Ɨ 100 = 20 (540 āˆ’ š¶.š‘ƒ)/(š¶.š‘ƒ) = 20/100 (540 āˆ’ š¶.š‘ƒ)/(š¶.š‘ƒ) = 2/10 (šŸ“šŸ’šŸŽ āˆ’ š‘Ŗ.š‘·)/(š‘Ŗ.š‘·) = šŸ/šŸ“ Cross Multiplying 5 Ɨ (540 āˆ’ CP) = 1 Ɨ CP 2700 ā€“ 5 CP = CP 2700 = 6CP 6CP = 2700 CP = šŸšŸ•šŸŽšŸŽ/šŸ” CP = 900/2 CP = Rs 450 So, Cost Price is Rs 450

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