PSLE Cole, Valen and George had 684 stickers altogether. Cole gave
320 of his stickers to Valen and
14 of his stickers to George. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Valen and George at first?
|
Cole |
Valen |
George |
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 Cole, Valen and George in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Cole had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 684
1 u = 684 ÷ 36 = 19
Difference in the number of stickers between Valen and George at first
= 9 u - 7 u
= 2 u
= 2 x 19
= 38
Answer(s): 38