PSLE Jack, Glen and Warren had 432 stickers altogether. Jack gave
320 of his stickers to Glen and
25 of his stickers to Warren. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Glen and Warren at first?
|
Jack |
Glen |
Warren |
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 Jack, Glen and Warren in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Jack had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 432
1 u = 432 ÷ 27 = 16
Difference in the number of stickers between Glen and Warren at first
= 6 u - 1 u
= 5 u
= 5 x 16
= 80
Answer(s): 80