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Monday, August 21 2017 @ 01:42 AM CDT
 Forum Index >  Test Paper Related >  Primary 4 Matters
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By: achieve_goal (offline)  Thursday, October 27 2011 @ 04:49 AM CDT (Read 1044 times)  
achieve_goal

James had 84 more Singapore stamps than Australian stamps

at first.After giving away 116 Singapore stamps, he found that he

found that he had 5 times as many Australian stamps as Singapore

stamps left. How many Singapore stamps did he have at first?

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By: GUO MING JAU (offline)  Thursday, October 27 2011 @ 06:15 AM CDT  
GUO MING JAU

Quote by: achieve_goal

James had 84 more Singapore stamps than Australian stamps

at first.After giving away 116 Singapore stamps, he found that he

found that he had 5 times as many Australian stamps as Singapore

stamps left. How many Singapore stamps did he have at first?



Well, I'm not sure of the ans as I'm only p4
This is my method;
A+84=A*5
S+16=A+84
166+84=20
So,
1 unit-> 200/4=50
50+116=Ans(166)

Big Grin

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By: Kevin1991 (offline)  Friday, October 28 2011 @ 02:06 PM CDT  
Kevin1991

If he gave away 84 Singapore Stamps, there will be an equal amount of Singapore and Australian Stamps.

Singapore [1][2][3][4][5]
Australia [1][2][3][4][5]

116 - 84 = 32

After giving 32 more steps,

Singapore [1]
Australia [1][2][3][4][5]


Therefore,
4 u = 32
5 u = 32/4 x 5
= 40

Total singapore stamps = 40 +84
= 124

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