PSLE Wesley, Dylan and George had 324 stickers altogether. Wesley gave
320 of his stickers to Dylan and
14 of his stickers to George. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Dylan and George at first?
|
Wesley |
Dylan |
George |
Total |
Before |
20 u |
9 u |
7 u |
36 u |
Change 1 |
- 3 u |
+ 3 u |
|
|
Change 2 |
- 5 u |
|
+ 5 u |
|
After |
12 u |
12 u |
12 u |
36 u |
Comparing between Wesley, Dylan and George in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Wesley had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 324
1 u = 324 ÷ 36 = 9
Difference in the number of stickers between Dylan and George at first
= 9 u - 7 u
= 2 u
= 2 x 9
= 18
Answer(s): 18