PSLE Tim, Jenson and Howard had 150 stickers altogether. Tim gave
110 of his stickers to Jenson and
25 of his stickers to Howard. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Jenson and Howard at first?
|
Tim |
Jenson |
Howard |
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 Tim, Jenson and Howard in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Tim had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 150
1 u = 150 ÷ 15 = 10
Difference in the number of stickers between Jenson and Howard at first
= 4 u - 1 u
= 3 u
= 3 x 10
= 30
Answer(s): 30