i can't solve itflee0308 wrote:Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim. Jim ate 12 sweets and Ken ate 18 chocolates. The ratio of Jim’s sweets to chocolates became 1:7 and the ratio of Ken’s sweets to chocolates became 1:4. How many sweets did Ken buy?
This question lor. Stupid, really.
For those who took the psle
Re: For those who took the psle
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Re: For those who took the psle
Let C be the number of choclates Jim had and S be the number of sweets Ken had, after they gave away half of their sweets/choclates.
7(S-12)=C
7S-84=C-(1)
4S=C-18
4S+18=C -(2)
(1)=(2),
4S+18=7S-84
102=3S
S=34
2S=68
Ken bought 68 sweets.
However, this method is "illegal" cause p6 were not taught stimultaneous equations yet. They had to use models, or use only 1 variable in algebra.
Let S be the number of sweets Ken gave away.
7(S-12)=4S+18
7S-84=4S+18
3S=102
S=34
2S=64
7(S-12)=C
7S-84=C-(1)
4S=C-18
4S+18=C -(2)
(1)=(2),
4S+18=7S-84
102=3S
S=34
2S=68
Ken bought 68 sweets.
However, this method is "illegal" cause p6 were not taught stimultaneous equations yet. They had to use models, or use only 1 variable in algebra.
Let S be the number of sweets Ken gave away.
7(S-12)=4S+18
7S-84=4S+18
3S=102
S=34
2S=64
Re: For those who took the psle
it hurt my eyeflee0308 wrote:Let C be the number of choclates Jim had and S be the number of sweets Ken had, after they gave away half of their sweets/choclates.
7(S-12)=C
7S-84=C-(1)
4S=C-18
4S+18=C -(2)
(1)=(2),
4S+18=7S-84
102=3S
S=34
2S=68
Ken bought 68 sweets.
However, this method is "illegal" cause p6 were not taught stimultaneous equations yet. They had to use models, or use only 1 variable in algebra.
Let S be the number of sweets Ken gave away.
7(S-12)=4S+18
7S-84=4S+18
3S=102
S=34
2S=64
Donate money to my paypal account @ danielongdequan1996@hotmail.com to keep this website alive!
Re: For those who took the psle
Psle is so lame haha PLSE AKA PLS STOP LEARNING ENGLISH...lol haha

I am a good person... juz dun make me angry.... +(-.-)+
Re: For those who took the psle
you more lame keep posting smileysnoeltqs wrote:Psle is so lame haha PLSE AKA PLS STOP LEARNING ENGLISH...lol haha![]()
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Donate money to my paypal account @ danielongdequan1996@hotmail.com to keep this website alive!
-
Susashiden
- Holy Philosopher

- Posts: 965
- Joined: Sun Sep 06, 2009 11:58 pm
- Location: SomeWhere You Don't Know.
Re: For those who took the psle
when u reach sec 2 or 3 u will find that its actually very easy to do lols




800 Post [x]
1337 Post [-]
1600 Post [-]
Wz.Edit [X]
Learn Basic Mem Edit [X]
Rls my own trainer [X]
Rls a hack found by me[-]
" Who Wants to Be A Millionaire " Legendary Winner .
Re: For those who took the psle
sec1 didn't even learn thatSusashiden wrote:when u reach sec 2 or 3 u will find that its actually very easy to do lols
Donate money to my paypal account @ danielongdequan1996@hotmail.com to keep this website alive!
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Susashiden
- Holy Philosopher

- Posts: 965
- Joined: Sun Sep 06, 2009 11:58 pm
- Location: SomeWhere You Don't Know.
Re: For those who took the psle
thats y i said when reach sec 2 - 3 ...O.oBoredness wrote:sec1 didn't even learn thatSusashiden wrote:when u reach sec 2 or 3 u will find that its actually very easy to do lols




800 Post [x]
1337 Post [-]
1600 Post [-]
Wz.Edit [X]
Learn Basic Mem Edit [X]
Rls my own trainer [X]
Rls a hack found by me[-]
" Who Wants to Be A Millionaire " Legendary Winner .
Re: For those who took the psle
any idea when the results will be out?
Donate money to my paypal account @ danielongdequan1996@hotmail.com to keep this website alive!
