PSLE Jack, Tommy and Flynn had 300 stickers altogether. Jack gave
110 of his stickers to Tommy and
25 of his stickers to Flynn. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Tommy and Flynn at first?
|
Jack |
Tommy |
Flynn |
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 Jack, Tommy and Flynn in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Jack had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 300
1 u = 300 ÷ 15 = 20
Difference in the number of stickers between Tommy and Flynn at first
= 4 u - 1 u
= 3 u
= 3 x 20
= 60
Answer(s): 60