F.1 English's maths
2007-02-24 12:29 am
1.If a motorcycle is sold at $31 680, the loss percent is 12%. If it is sold at $29 520, find the new loss percent.
回答 (3)
2007-02-24 12:36 am
✔ 最佳答案
Let the cost of the motorcycle be $yy(1-12%)=31680
y=31680/88%
y=36000
Therefore the cost of the motorcycle is $36000.
If it is sold at $29520,the new lost percentage:
(31680-29520)/31680x100%=216/3168=900/132 %=6又9/11%
2007-02-23 16:37:17 補充：
Sorry, If it is sold at $29520,the new lost percentage:(36000-29520)/36000x100%=18%
2007-02-24 12:37 am
Answer : 18%
y x 88 / 100 = 31680
y = 31680 x 100 / 88
y = 36000
So the original price of motorcycle is $36,000
New Loss percent : 36000 - 29520 / 36000 = 18%
y x 88 / 100 = 31680
y = 31680 x 100 / 88
y = 36000
So the original price of motorcycle is $36,000
New Loss percent : 36000 - 29520 / 36000 = 18%
2007-02-24 12:33 am
Original Price = 31680 /(1-12%=88%) = 36000
%Loss = 36000 - 29520 / 36000 *100% = 18%
%Loss = 36000 - 29520 / 36000 *100% = 18%
收錄日期: 2021-04-23 00:09:52
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