PSLE Carl, Tim and Xavier had 162 stickers altogether. Carl gave
320 of his stickers to Tim and
25 of his stickers to Xavier. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Tim and Xavier at first?
|
Carl |
Tim |
Xavier |
Total |
Before |
20 u |
6 u |
1 u |
27 u |
Change 1 |
- 3 u |
+ 3 u |
|
|
Change 2 |
- 8 u |
|
+ 8 u |
|
After |
9 u |
9 u |
9 u |
27 u |
Comparing between Carl, Tim and Xavier in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Carl had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 162
1 u = 162 ÷ 27 = 6
Difference in the number of stickers between Tim and Xavier at first
= 6 u - 1 u
= 5 u
= 5 x 6
= 30
Answer(s): 30