PSLE Warren, Peter and Daniel had 396 stickers altogether. Warren gave
320 of his stickers to Peter and
14 of his stickers to Daniel. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Peter and Daniel at first?
|
Warren |
Peter |
Daniel |
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 Warren, Peter and Daniel in the end |
1x12 = 12 u |
1x12 = 12 u |
1x12 = 12 u |
3x12 = 36 u |
Fraction of stickers that Warren had left
= 1 -
320 -
14 = 1 -
320 -
520 =
1220 Total number of stickers
= 3 x 12 u
= 36 u
36 u = 396
1 u = 396 ÷ 36 = 11
Difference in the number of stickers between Peter and Daniel at first
= 9 u - 7 u
= 2 u
= 2 x 11
= 22
Answer(s): 22