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