PSLE Pierre, Xavier and Luke had 120 stickers altogether. Pierre gave
110 of his stickers to Xavier and
25 of his stickers to Luke. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Xavier and Luke at first?
|
Pierre |
Xavier |
Luke |
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 Pierre, Xavier and Luke in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Pierre had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 120
1 u = 120 ÷ 15 = 8
Difference in the number of stickers between Xavier and Luke at first
= 4 u - 1 u
= 3 u
= 3 x 8
= 24
Answer(s): 24