Sign Up!
Login
Welcome to Test-paper.info
Thursday, November 23 2017 @ 02:57 AM CST
 Forum Index >  Test Paper Related >  Primary 3 Matters
 question from problem sums
   |  Printable Version
By: tangara (offline)  Thursday, October 27 2011 @ 10:54 AM CDT (Read 1221 times)  
tangara

Hi forum members,

I'm stuck with a question from problemsums.com

Stan had 66 more stickers than Jack.
Both of them won another 2 stickers each.
In the end, Stan had 7 times as many as Jack.
How many stickers did both of them have together at first?

Hope to hear from someone. Thanks.

Forum Junior
Junior

Registered: 07/31/10
Posts: 26

Profile Email    
   
By: leongmart (offline)  Thursday, October 27 2011 @ 07:25 PM CDT  
leongmart

After adding 2 each to Stan and Jack, the difference is still 66.
Since Stan's is 7 times (i.e 7 units) of Jack's (1 unit), the difference is 6 units.

Thus, 6 units = 66
1 unit = 11

Before adding the 2,
Jack has 11 -2 = 9
Stan has 77 - 2 = 75

Total at first 75 + 9 = 84

Forum Newbie
Newbie

Registered: 12/31/06
Posts: 6

Profile Email    
   
By: ChrisChua (offline)  Thursday, October 27 2011 @ 07:26 PM CDT  
ChrisChua

Hi,

There is always a difference of 66 if both of them are always given or taken away the same amount. Therefore, there is a difference of 6 units.

6 units ---> 66
8 units ---> 88

So answer should be 88.

Forum Newbie
Newbie

Registered: 12/06/09
Posts: 1

Profile Email    
   


 All times are CST. The time is now 02:57 am.
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