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1. A discount series 10%, 15% and 20% is equal to a single discound of :
- A. 38.8%
- B. 38.8%
- C. 38.8%
- D. 38.8%
Answer: Option A
Explanation:
the single equivalent discount can be calculated as: 1 - (1 - d1) × (1 - d2) × (1 - d3), where d1, d2, d3 are the discounts. Therefore, the single discount equivalent to the successive discounts of 10%, 15%, and 20% is 38.8% or 0.388
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