PSLE Gabriel, Tim and Archie had 684 stickers altogether. Gabriel gave
320 of his stickers to Tim and
14 of his stickers to Archie. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Tim and Archie at first?
|
Gabriel |
Tim |
Archie |
Total |
Before |
20 u |
9 u |
7 u |
36 u |
Change 1 |
- 3 u |
+ 3 u |
|
|
Change 2 |
- 5 u |
|
+ 5 u |
|
After |
12 u |
12 u |
12 u |
36 u |
Comparing between Gabriel, Tim and Archie in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Gabriel had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 684
1 u = 684 ÷ 36 = 19
Difference in the number of stickers between Tim and Archie at first
= 9 u - 7 u
= 2 u
= 2 x 19
= 38
Answer(s): 38