PSLE Vincent, Lee and Peter had 225 stickers altogether. Vincent gave
110 of his stickers to Lee and
25 of his stickers to Peter. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Lee and Peter at first?
|
Vincent |
Lee |
Peter |
Total |
Before |
10 u |
4 u |
1 u |
15 u |
Change 1 |
- 1 u |
+ 1 u |
|
|
Change 2 |
- 4 u |
|
+ 4 u |
|
After |
5 u |
5 u |
5 u |
15 u |
Comparing between Vincent, Lee and Peter in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Vincent had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 225
1 u = 225 ÷ 15 = 15
Difference in the number of stickers between Lee and Peter at first
= 4 u - 1 u
= 3 u
= 3 x 15
= 45
Answer(s): 45