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Thursday, July 20 2017 @ 07:37 AM CDT
 Forum Index >  Test Paper Related >  Primary 5 Matters
 P5 Maths Question
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By: smnleong (offline)  Sunday, September 26 2010 @ 06:26 AM CDT (Read 1548 times)  
smnleong

Could anyone help with this problem :

The ratio of the number of Faye's balls to the number of Ian's balls was 1:5. Then their father gave Ian 12 more balls and Faye 5 more balls. The ratio of the numbr of Faye's balls to the number of Ian's balls become 1:4. How many more balls did Ian have than Faye in the end?

Answer : 39 balls

I cannot figure out the working method, I believe that it is based on model, but cannot understand the model. Thanks!

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By: tanhuimin (offline)  Tuesday, September 28 2010 @ 03:41 AM CDT  
tanhuimin

Pls refer to attached model and solution.
Thanks

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