The list price of an electric iron is Rs. 300. If two successive discounts of…

Concept: For successive percentage discounts, each discount is applied one after another on the reducing price - the second discount acts on the price that remains AFTER the first discount, not on the original list price. For a list price P with successive discounts d1% and d2%, the final selling price = P x (1 - d1/100) x (1 - d2/100).

1. List price = Rs. 300.

2. First discount of 15%: 15% of 300 = 45, so price after the first discount = 300 - 45 = Rs. 255.

3. Second discount of 10% applied on the reduced price of Rs. 255 (not on the original Rs. 300): 10% of 255 = 25.5, so the final selling price = 255 - 25.5 = Rs. 229.50.

Cross-check using the equivalent single discount: (1 - 0.15) x (1 - 0.10) = 0.85 x 0.90 = 0.765, an overall 23.5% discount. 23.5% of 300 = 70.5, so 300 - 70.5 = Rs. 229.50 - confirms the step-by-step result.

Since Rs. 229.50 does not match any of the listed numeric options (297.50, 231.50, 232.50), the correct choice is 'None of the above'.