Question
A shopkeeper allows two successive discounts of 20% and
20% on an article marked at Rs 2,000. Find the single equivalent discount.Solution
After 1st discount (20%): Price₁ = 2,000 × 0.8 = 1,600 After 2nd discount (20%): SP = 1,600 × 0.8 = 1,280 Total discount = 2,000 − 1,280 = 720 Equivalent discount % = (720 / 2,000) × 100 = 720/2000 = 72/200 = 36/100 = 36% Answer: Equivalent single discount = 36%
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