PSLE Justin, Caden and Bryan had 324 stickers altogether. Justin gave
320 of his stickers to Caden and
25 of his stickers to Bryan. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Caden and Bryan at first?
|
Justin |
Caden |
Bryan |
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 Justin, Caden and Bryan in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Justin had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 324
1 u = 324 ÷ 27 = 12
Difference in the number of stickers between Caden and Bryan at first
= 6 u - 1 u
= 5 u
= 5 x 12
= 60
Answer(s): 60