Sign Up!
Login
Welcome to Test-paper.info
Thursday, June 22 2017 @ 05:29 PM CDT
 Forum Index >  Test Paper Related >  Primary 6 Matters
 P6 percentage
   |  Printable Version
By: JessicaTan (offline)  Wednesday, February 13 2013 @ 06:32 AM CST (Read 698 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

Forum Regular Member
Regular Member

Registered: 10/17/09
Posts: 82

Profile Email    
   
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

Forum Newbie
Newbie

Registered: 11/08/12
Posts: 2

Profile Email    
   
By: Terribleplayer (offline)  Tuesday, February 19 2013 @ 01:36 PM CST  
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...

Forum Newbie
Newbie

Registered: 08/18/12
Posts: 5

Profile Email    
   


 All times are CDT. The time is now 05:29 pm.
Normal Topic Normal Topic
Locked Topic Locked Topic
Sticky Topic Sticky Topic
New Post New Post
Sticky Topic w/ New Post Sticky Topic w/ New Post
Locked Topic w/ New Post Locked Topic w/ New Post
View Anonymous Posts 
Able to Post 
HTML Allowed 
Censored Content