[BC Maths Ch.8 P.12]
The bag is sold at a discount of 20% on its marked price which is $400.
(i).
What is the selling price of the bag?
(ii).
A profit of $70 is made by selling the bag.
What is the % profit?
About percentage (Mathematics) [BCMathsCh8P12]
2007-11-23 6:15 pm
回答 (1)
2007-11-23 6:48 pm
✔ 最佳答案
selling price = marked price x ( 1 - % discount )selling price = 400 ( 1- 20%) {20% can be written in 0.2)
selling price = 400 x 0.8
= 320
(% profit) = 100%x profit / ( selling price - profit)
{ selling price - profit = the original price of the bag}
= 70 / (320 - 70) x 100%
= 70 / 250 x 100%
= 7 / 25 (100/25 = 4)
= 28%
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