PSLE Japheth, Perry and Fabian had 459 stickers altogether. Japheth gave
320 of his stickers to Perry and
25 of his stickers to Fabian. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Perry and Fabian at first?
|
Japheth |
Perry |
Fabian |
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 Japheth, Perry and Fabian in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Japheth 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 Perry and Fabian at first
= 6 u - 1 u
= 5 u
= 5 x 17
= 85
Answer(s): 85