PSLE Elijah, Oliver and Warren had 189 stickers altogether. Elijah gave
320 of his stickers to Oliver and
25 of his stickers to Warren. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Oliver and Warren at first?
|
Elijah |
Oliver |
Warren |
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 Elijah, Oliver and Warren in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Elijah had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 189
1 u = 189 ÷ 27 = 7
Difference in the number of stickers between Oliver and Warren at first
= 6 u - 1 u
= 5 u
= 5 x 7
= 35
Answer(s): 35