maths
2010-10-01 8:33 pm
Harry scored 54marks in his first Mathematics test.He scored 5marks more in the second test,and then 15marks less in the third test.In the fourth test,he scored a further 9marks less.How many marks did Harry score in the fourth test?
回答 (2)
2010-10-01 8:38 pm
✔ 最佳答案
要解左問題先harry有4次測驗
第一次係54分
第二次多5分(第二次變左+5)
第三次少15分(-15)
第四次少左9分
得出:
54+5-15-9=35
He score 35 marks in the fourth test.
2010-10-01 10:43 pm
first 54
second 54+5=59
third 59-15=44
forth 44-9=35
he scored 35 marks in the forth test
second 54+5=59
third 59-15=44
forth 44-9=35
he scored 35 marks in the forth test
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https://hk.answers.yahoo.com/question/index?qid=20101001000051KK00524