If on a Sale there is 30% discount on the marked price of Rs 2500, but the sale is done at Rs 1400 only. What additional discount (in %) did the customer get?
Marked price = Rs. 2500
Discount % = 30%
=> Selling price = $$\frac{70}{100}\times2500=Rs.$$ $$1750$$
Actual selling price = Rs. 1400
=> Additional discount % = $$\frac{(1750-1400)}{1750}\times100$$
= $$\frac{1}{5}\times100=20\%$$
=> Ans - (B)
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