1. A shop owner sets the marked price of a digital camera so as to make a profut of 30%.
Finally,he sells it at a discount of 10% and make a profit of 238 .If the cost price of the digital camera is $x.
a)express the marked price of the digital camera in terms of x,
b)express the selling price of the digital camera in terms of x
c)find the value of x
Math Questions total 3 Q
2007-02-16 4:10 am
回答 (2)
2007-02-16 5:10 am
✔ 最佳答案
a)The marked price of the digital camera=(1+30%)x
=1.3x
b) The selling price of the digital came
= marked price * (1-discount rate)
=1.3x * (1-10%)
=1.17x
c)Profit = 238
selling price – cost = 238
1.17x – x = 238
0.17x = 238
x = 1400
The cost of the camera is $1400
2007-02-17 6:36 pm
The cost price of the digital camera is $x.
The marked price=$(1+0.3)x
=$1.3x
The selling price = $1.3x (1-0.1)
=$1.17x
'.' The profit = $238
.'. 1.17x – x = 238
0.17x = 238
x =238/0.17
x =1400
.'. The cost price of the digital camera is $1400.
The marked price=$(1+0.3)x
=$1.3x
The selling price = $1.3x (1-0.1)
=$1.17x
'.' The profit = $238
.'. 1.17x – x = 238
0.17x = 238
x =238/0.17
x =1400
.'. The cost price of the digital camera is $1400.
收錄日期: 2021-04-23 20:22:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070215000051KK03891