PSLE Daniel, Michael and Rael had 180 stickers altogether. Daniel gave
110 of his stickers to Michael and
25 of his stickers to Rael. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Michael and Rael at first?
|
Daniel |
Michael |
Rael |
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 Daniel, Michael and Rael in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Daniel had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 180
1 u = 180 ÷ 15 = 12
Difference in the number of stickers between Michael and Rael at first
= 4 u - 1 u
= 3 u
= 3 x 12
= 36
Answer(s): 36