Question : What is the single discount that is equivalent to two successive discounts of 12.5% and 20%?
Option 1: 31.5%
Option 2: 30%
Option 3: 27.5%
Option 4: 28%
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Correct Answer: 30%
Solution : Given: The two successive discounts of 12.5% and 20%. The single discount $x=a+b-\frac{a\times b}{100}$, where $a$, and $b$ are the first, and second discounts. $x=12.5+20-\frac{12.5\times 20}{100}=32.5-2.5=30\%$ Hence, the correct answer is 30%.
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