PSLE Ryan, Warren and Perry had 459 stickers altogether. Ryan gave
320 of his stickers to Warren and
25 of his stickers to Perry. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Warren and Perry at first?
|
Ryan |
Warren |
Perry |
Total |
Before |
20 u |
6 u |
1 u |
27 u |
Change 1 |
- 3 u |
+ 3 u |
|
|
Change 2 |
- 8 u |
|
+ 8 u |
|
After |
9 u |
9 u |
9 u |
27 u |
Comparing between Ryan, Warren and Perry in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Ryan had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 459
1 u = 459 ÷ 27 = 17
Difference in the number of stickers between Warren and Perry at first
= 6 u - 1 u
= 5 u
= 5 x 17
= 85
Answer(s): 85