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