1.Sam bought 18 boxes of eggs at $900. He found that one box was broken.
If he sold out the remaining at an overall profit rate of 19%,what is the selling
price of eash box ?
2.A man bought 36 bags at $4860.He sold 75% atprofit rate of 27% and the
rest at a loss rate of 1%. What is the overall percentage profit ?
我要用英文列式，詳細步驟
數學題:百分數 (1)
2011-09-28 3:35 am
回答 (2)
2011-09-28 6:25 am
✔ 最佳答案
Q1Total cost = 900 x 18 = 16200
Overall profits = 16200 x 19% = 3078
Selling price of each box = (Total cost + overall profits) / 17 boxes
= (16200 + 3078) / 17 = 1134
Q2
cost of each bag = 4860 / 36 = 135
Total profits of 75% bags = 4860 x 75% x 27% = 984.15
Loss of 25% bags = 4860 x 25% x 1% = 12.15
overall profits in percentage = (984.15 - 12.15) / 4860 x 100%
= 20%
OR
overall profits in percentage = 75% x 27% - 25% x 1% = 20%
2011-10-12 4:00 am
Q1
Total cost = 900 x 18 = 16200
Overall profits = 16200 x 19% = 3078
Selling price of each box = (Total cost + overall profits) / 17 boxes
= (16200 + 3078) / 17 = 1134
Total cost = 900 x 18 = 16200
Overall profits = 16200 x 19% = 3078
Selling price of each box = (Total cost + overall profits) / 17 boxes
= (16200 + 3078) / 17 = 1134
參考: yahoo
收錄日期: 2021-04-13 18:15:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110927000051KK00681