PSLE Harry, Daniel and Tim had 195 stickers altogether. Harry gave
110 of his stickers to Daniel and
25 of his stickers to Tim. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Daniel and Tim at first?
|
Harry |
Daniel |
Tim |
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 Harry, Daniel and Tim in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Harry had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 195
1 u = 195 ÷ 15 = 13
Difference in the number of stickers between Daniel and Tim at first
= 4 u - 1 u
= 3 u
= 3 x 13
= 39
Answer(s): 39