PSLE Jeremy, Vincent and Sean had 255 stickers altogether. Jeremy gave
110 of his stickers to Vincent 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 Vincent and Sean at first?
|
Jeremy |
Vincent |
Sean |
Total |
Before |
10 u |
4 u |
1 u |
15 u |
Change 1 |
- 1 u |
+ 1 u |
|
|
Change 2 |
- 4 u |
|
+ 4 u |
|
After |
5 u |
5 u |
5 u |
15 u |
Comparing between Jeremy, Vincent and Sean in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Jeremy had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 255
1 u = 255 ÷ 15 = 17
Difference in the number of stickers between Vincent and Sean at first
= 4 u - 1 u
= 3 u
= 3 x 17
= 51
Answer(s): 51