PSLE Archie, Oliver and John had 351 stickers altogether. Archie gave
320 of his stickers to Oliver and
25 of his stickers to John. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Oliver and John at first?
|
Archie |
Oliver |
John |
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 Archie, Oliver and John in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Archie had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 351
1 u = 351 ÷ 27 = 13
Difference in the number of stickers between Oliver and John at first
= 6 u - 1 u
= 5 u
= 5 x 13
= 65
Answer(s): 65