PSLE Caden, Xavier and Zeph had 432 stickers altogether. Caden gave
320 of his stickers to Xavier and
25 of his stickers to Zeph. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Xavier and Zeph at first?
|
Caden |
Xavier |
Zeph |
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 Caden, Xavier and Zeph in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Caden had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 432
1 u = 432 ÷ 27 = 16
Difference in the number of stickers between Xavier and Zeph at first
= 6 u - 1 u
= 5 u
= 5 x 16
= 80
Answer(s): 80