A merchant buys some toys at $960. If he sells them at $8 each, he will get his sum of money back by selling only 80% of them. If he sells all of them, find the profit percentage.
只求列式,謝謝
數學題(急!!!!!!20點
2011-08-11 9:14 am
回答 (1)
2011-08-11 3:00 pm
✔ 最佳答案
Let the quantity of toys = x, that is cost of these toys = $960.80% of them = 0.8x, if selling at $8 each, value = (0.8x)($8) = $6.4x
That is $960 = $6.4x
x = 960/6.4 = 150.
If selling all 150 pcs, total value = (150)($8) = $1200
Therefore, % profit = (1200 - 960)/960 x 100% = 25%.
2011-08-11 07:03:42 補充：
Note : % profit is NOT 100% - 80% = 20%.
收錄日期: 2021-04-25 22:37:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110811000051KK00094