PSLE At first, Min had 68 cards and some stamps. After she gave away 45 cards and 40% of the stamps, she had a total of 41 cards and stamps. How many stamps did Min give away?
|
Cards |
Stamps |
Total |
Before |
68 |
5 u |
|
Change |
- 45 |
- 2 u |
|
After |
23 |
3 u |
41 |
40% =
40100 =
25 Number of cards that Min left
= 68 - 45
= 23
Number of stamps that Min left
= 41 - 23
= 18
3 u = 18
1 u = 18 ÷ 3 = 6
Number of stamps that Min gave away
= 2 u
= 2 x 6
= 12
Answer(s): 12