PSLE Warren, Sam and Charlie had 270 stickers altogether. Warren gave
110 of his stickers to Sam and
25 of his stickers to Charlie. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Sam and Charlie at first?
|
Warren |
Sam |
Charlie |
Total |
Before |
10 u |
4 u |
1 u |
15 u |
Change 1 |
- 1 u |
+ 1 u |
|
|
Change 2 |
- 4 u |
|
+ 4 u |
|
After |
5 u |
5 u |
5 u |
15 u |
Comparing between Warren, Sam and Charlie in the end |
1x5 = 5 u |
1x5 = 5 u |
1x5 = 5 u |
3x5 = 15 u |
Fraction of stickers that Warren had left
= 1 -
110 -
25 = 1 -
110 -
410 =
510 Total number of stickers
= 3 x 5 u
= 15 u
15 u = 270
1 u = 270 ÷ 15 = 18
Difference in the number of stickers between Sam and Charlie at first
= 4 u - 1 u
= 3 u
= 3 x 18
= 54
Answer(s): 54