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A TV priced at 800 was reduced by 20% in a sale. On the last day it was reduced by a further 10%. How do you find out the overall percentage reduction in price?

1 Answer

Nov 21, 2016

Overall reduction percentage was $28 %$ $28%$ .

Explanation:

Sale price was $800 \cdot (1 - 0.2) = 800 \cdot 0.8 = 640$ $800 * (1-0.2) = 800*0.8 =640$ unit

Sale price on last day was $640 \cdot (1 - 0.1) = 640 \cdot 0.9 = 576$ $640 * (1-0.1) = 640*0.9 =576$ unit

Initial price was $800$ $800$ unit

Final price was $576$ $576$ unit

Overall reduction was $800 - 576 = 224$ $800-576=224$ unit.

Overall reduction percentage was $\frac{224}{800} \cdot 100 = 28 %$ $224/800*100=28%$ . [Ans]

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