PSLE Fabian, Luke and Bryan had 396 stickers altogether. Fabian gave
320 of his stickers to Luke and
14 of his stickers to Bryan. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Luke and Bryan at first?
|
Fabian |
Luke |
Bryan |
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 Fabian, Luke and Bryan in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Fabian had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 396
1 u = 396 ÷ 36 = 11
Difference in the number of stickers between Luke and Bryan at first
= 9 u - 7 u
= 2 u
= 2 x 11
= 22
Answer(s): 22