Question 29

What is the effective discount (in %) on two successive discounts of 20% and 10%?

Solution

Let list price = Rs. $$100x$$

After first discount of 20%, price = $$100x \times \frac{(100-20)}{100}=80x$$

After second discount of 10%, price = $$80x \times \frac{(100-10)}{100}=72x$$

=> Equivalent discount = $$\frac{100x-72x}{100x} \times 100$$

= $$28\%$$

=> Ans - (D)

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