Question : Three successive discounts of 10% are available on the sale of a washing machine with a marked price of INR 55,000. Find the final selling price (in INR) of the washing machine.
Option 1: 40095
Option 2: 44000
Option 3: 40000
Option 4: 42095
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Correct Answer: 40095
Solution :
Marked price = INR 55,000
Successive discounts of 10%, 10%, and 10%
For thre successive discounts, selling price = $\frac{100-\text{Discount}_1\%}{100}× \frac{100-\text{Discount}_2\%}{100}× \frac{100-\text{Discount}_3\%}{100}×$ marked price
Selling price = $\frac{90}{100}$×$\frac{90}{100}$×$\frac{90}{100}$× 55,000 = INR 40,095.
Hence, the correct answer is 40095.
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