Question : The list price of an electric fan is Rs. 300. If two successive discounts of 15% and 10% are allowed, its selling price would be:
Option 1: Rs. 227.50
Option 2: Rs. 225
Option 3: Rs. 230
Option 4: Rs. 229.50
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Correct Answer: Rs. 229.50
Solution :
We know,
Equivalent single discount = $(a+b-\frac{a\times b}{100})$%,
Where $a,b$ are successive discounts.
So, $15+10-\frac{15\times 10}{100}=23.5$%
$\therefore$ Required selling price = (100 – 23.5)% of 300 = $\frac{300 \times 76.5}{100}$ = Rs. 229.50
Hence, the correct answer is Rs. 229.50.
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