Welcome to Test-paper.info
Thursday, January 18 2018 @ 01:28 PM CST
 Select a Forum » General Chat » Primary 1 Matters » Primary 2 Matters » Primary 3 Matters » Primary 4 Matters » Primary 5 Matters » Primary 6 Matters » Question, Feedback and Comments » Education Classified
 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 1259 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.

Junior

Registered: 07/31/10
Posts: 26

 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

Jack has 11 -2 = 9
Stan has 77 - 2 = 75

Total at first 75 + 9 = 84

Newbie

Registered: 12/31/06
Posts: 6

 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