有谁会吗？

白衣人

1)Ali has RM900,30% of it RM5-notes and the rest are RM10-notes. He had spent some of RM5-notes and the rest of RM5-notes make up 10% of his original sum of money.How many RM5-notes did Alisave?


2)Tom,Jeff and Ravi had a total of 72 marbles in the ratio 3:1:4 respectively.After a few games,the three boys had the same number of marbles each.

a)How many marbles did each boy have at the end of the game?

b)How many marbles did Ravi lose to Jeff?

3)My grandfather was divided a sum of money to three of us,my sister will get the larger portion while my brother will get the smallest portion.The money is divided in the ratio of 5\8 : 1\4 : 3 . If my sister gets RM3 million, find the amount obtained by my brother and me...

[ 本帖最后由 白衣人 于 14-6-2009 05:11 PM 编辑 ]

白衣人

没人会吗？？我很急咧。。。

笨蛋一个

1) 题目含糊，不明白“How many RM5-notes did Mr.Jason save”这句
number of rm5 note of 10% money=900x0.1/5=18<---不懂这个是吗？

2）a)72/3=24
      b) initially, number of marble=27:9:36
after a few games, number of marble=24:24:24
Ravi lost 12

3) ratio=5\8 : 1\4 : 3
brother get 1/4 million, me get 5/8 milion

不像是stpm题目pun  

peaceboy

感觉像中5的数学问题

白衣人

不好意思。。。打错字。。。是ALI～～

白衣人

那你会吗。。。。

这是BASIC来得。。。拿来热身～～！！

junchung2003

lz
答案已经在#3