PSLE Eric, Ryan and Caden had 513 stickers altogether. Eric gave
320 of his stickers to Ryan and
25 of his stickers to Caden. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Ryan and Caden at first?
|
Eric |
Ryan |
Caden |
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 Eric, Ryan and Caden in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Eric had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 513
1 u = 513 ÷ 27 = 19
Difference in the number of stickers between Ryan and Caden at first
= 6 u - 1 u
= 5 u
= 5 x 19
= 95
Answer(s): 95