PSLE Zane, Cody and Carl had 468 stickers altogether. Zane gave
320 of his stickers to Cody and
14 of his stickers to Carl. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Cody and Carl at first?
|
Zane |
Cody |
Carl |
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, Cody and Carl 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 = 468
1 u = 468 ÷ 36 = 13
Difference in the number of stickers between Cody and Carl at first
= 9 u - 7 u
= 2 u
= 2 x 13
= 26
Answer(s): 26