PSLE Valen, Bryan and Glen had 360 stickers altogether. Valen gave
320 of his stickers to Bryan and
14 of his stickers to Glen. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Bryan and Glen at first?
|
Valen |
Bryan |
Glen |
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 Valen, Bryan and Glen in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Valen had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 360
1 u = 360 ÷ 36 = 10
Difference in the number of stickers between Bryan and Glen at first
= 9 u - 7 u
= 2 u
= 2 x 10
= 20
Answer(s): 20