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Two successive discount of 10% and 20% are equivalent to a single discount of:

A. 30% B. 28% C. 26% D. 25% Answer: Option B
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Solution(By Apex Team)

Use Formula, Equivalent Discount $=(A+B)-\frac{A B}{100}$ where A = First Discount, B =Second Discount. Equivalent Discount = (20 + 10) – $\frac{20 \times 10}{100}$ Equivalent Discount = 30 – 2 = 28% Second Method 100 == 20%(disc.) ⇒ 80 == 10%(disc.) ⇒ 72 Equivalent discount = 28%

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