The original price of a music CD is Rs. $500$ . A shopkeeper offers $10 %$ discount on this music CD and then again offers $20 %$ discount on the new price. How much will you have to pay, finally?

160

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260

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360

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460

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Solution

The correct option is D $360$
$\Rightarrow$ The original price of CD is $R s .500$
$\Rightarrow$ New price of CD after $10 %$ discount = $R s .500 - R s 500 \times \frac{10}{100} = R s .500 - R s .50 = R s .450$
$\Rightarrow$ Shopkeeper again offers $20 %$ discount on new price of CD.
$\Rightarrow$ So, final price of CD = $R s .450 - R s .450 \times \frac{20}{100} = R s .450 - R s .90 = R s .360$

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The original price of a music CD is Rs. 500. A shopkeeper offers 10% discount on this music CD and then again offers 20% discount on the new price. How much will you have to pay, finally?

The correct option is D 360⇒ The original price of CD is Rs.500⇒ New price of CD after 10% discount = Rs.500−Rs500×10100=Rs.500−Rs.50=Rs.450⇒ Shopkeeper again offers 20% discount on new price of CD.⇒ So, final price of CD = Rs.450−Rs.450×20100=Rs.450−Rs.90=Rs.360

The original price of a music CD is Rs. $500$ . A shopkeeper offers $10 %$ discount on this music CD and then again offers $20 %$ discount on the new price. How much will you have to pay, finally?