PSLE Luke, Michael and Glen had 255 stickers altogether. Luke gave
110 of his stickers to Michael and
25 of his stickers to Glen. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Michael and Glen at first?
|
Luke |
Michael |
Glen |
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 Luke, Michael and Glen in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Luke had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 255
1 u = 255 ÷ 15 = 17
Difference in the number of stickers between Michael and Glen at first
= 4 u - 1 u
= 3 u
= 3 x 17
= 51
Answer(s): 51