1.The temperature last night was 25℃ and it is 34℃ noon today.What is the percentage increase / decrease in temperature?
2.A mathematics test consists of 20 multiple-choice questions.Each question carry 2 marks.A boy score 28 marks.What percentage of questions does he get the answer correct?
3.Ahawker bought 1000apples for $1 each.If he sold the apple at $2 each, what is the profit percentage?
中一百分數
2007-08-18 7:30 pm
回答 (2)
2007-08-18 8:19 pm
✔ 最佳答案
.The percentage increase in temperature is(34-25)/25x100%=36%
2.The percentage of questions he gets the answer correct is:
28/(2x20)x100%=70%
3.The profit percentage is:
(2x1000-1000)/1000x100%=100%
2007-08-18 7:50 pm
1.(34-25)/25=36% (increase)
2.. 28/(20x2)=14
14/20x100%=70%
3. (1000x2-1000)/1000x100%=100%
2.. 28/(20x2)=14
14/20x100%=70%
3. (1000x2-1000)/1000x100%=100%
收錄日期: 2021-04-13 12:58:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070818000051KK01406