
By: tangara (offline) Thursday, October 27 2011 @ 10:54 AM CDT (Read 1097 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
Before adding the 2,
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
So answer should be 88.

Newbie
Registered: 12/06/09 Posts: 1



