PSLE Ethan, Flynn and Fred had 459 stickers altogether. Ethan gave
320 of his stickers to Flynn and
25 of his stickers to Fred. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Flynn and Fred at first?
|
Ethan |
Flynn |
Fred |
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 Ethan, Flynn and Fred in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Ethan had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 459
1 u = 459 ÷ 27 = 17
Difference in the number of stickers between Flynn and Fred at first
= 6 u - 1 u
= 5 u
= 5 x 17
= 85
Answer(s): 85