
By: JessicaTan (offline) Wednesday, February 13 2013 @ 06:32 AM CST (Read 724 times)



JessicaTan 
Please help with working solution .
Mr Sasi and Mr Lim are selling computer sets. After Mr Sasi sold 55% of his computer sets and Mr Lim bought 30% of the computer sets sold by Mr Sasi, each of them had 1350 computer sets left. How many computer sets did Mr Lim have at first?
answerkey : 855
thanks

Regular Member
Registered: 10/17/09 Posts: 82





By: Lim Tong En (offline) Wednesday, February 13 2013 @ 07:55 AM CST



Lim Tong En 
My Solution :
Mr. Sasi > 100%  55%
= 45%
45%>1350
1% >1350 / 45
= 30
So, 55% computers sold > 55 x 30
= 1650 sets
Mr. Lim bought 30% of the computer sets sold by Mr Sasi > 1650 x 30%
= 495 sets
At first, Mr. Lim > 1350  495
= 855

Newbie
Registered: 11/08/12 Posts: 2





Terribleplayer 
Interestingly, Mr Lim, who was supposed to be selling computers as well, didn't sell any and even ended up buying some from Mr Sasi!
I wonder if the poor sentence structure and allusion to Mr Lim selling computers (when he didn't) actually confused pupils who would have otherwise known how to answer a relatively simple question...

Newbie
Registered: 08/18/12 Posts: 5



