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