PSLE At first, Kimberly had 51 stickers and some stamps. After she gave away 30 stickers and 60% of the stamps, she had a total of 33 stickers and stamps. How many stamps did Kimberly give away?
|
Stickers |
Stamps |
Total |
Before |
51 |
5 u |
|
Change |
- 30 |
- 3 u |
|
After |
21 |
2 u |
33 |
60% =
60100 =
35 Number of stickers that Kimberly left
= 51 - 30
= 21
Number of stamps that Kimberly left
= 33 - 21
= 12
2 u = 12
1 u = 12 ÷ 2 = 6
Number of stamps that Kimberly gave away
= 3 u
= 3 x 6
= 18
Answer(s): 18