PSLE At first, Kylie had 88 cards and some stamps. After she gave away 70 cards and 30% of the stamps, she had a total of 39 cards and stamps. How many stamps did Kylie have at first?
|
Cards |
Stamps |
Total |
Before |
88 |
10 u |
|
Change |
- 70 |
- 3 u |
|
After |
18 |
7 u |
39 |
30% =
30100 =
310 Number of cards that Kylie left
= 88 - 70
= 18
Number of stamps that Kylie left
= 39 - 18
= 21
7 u = 21
1 u = 21 ÷ 7 = 3
Number of stamps that Kylie had at first
= 10 u
= 10 x 3
= 30
Answer(s): 30