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