PSLE Luke, Peter and Rael had 468 stickers altogether. Luke gave
320 of his stickers to Peter and
14 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 Peter and Rael at first?
|
Luke |
Peter |
Rael |
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 Luke, Peter and Rael in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Luke had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 468
1 u = 468 ÷ 36 = 13
Difference in the number of stickers between Peter and Rael at first
= 9 u - 7 u
= 2 u
= 2 x 13
= 26
Answer(s): 26