1.

Three successive discounts of 20%, 25% and 15% are given. What will be the net discount (in percentage)?1). 602). 493). 554). 65

Answer»

Let, marked PRICE = x

After first discount of 20%, price = x - x × 20/100 = 0.8x

After second discount of 25%, price = 0.8x - 0.8x × 25/100 = 0.6x

After third discount of 15%, price = 0.6x - 0.6x × 15/100 = 0.51x

∴ Net discount percentage,

$(\RIGHTARROW \frac{{x - 0.51x}}{x} \times 100\%)$

⇒ 49%


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