PSLE At first, Linda had 91 stamps and some cards. After she gave away 53 stamps and 40% of the cards, she had a total of 59 stamps and cards. How many cards did Linda have at first?
|
Stamps |
Cards |
Total |
Before |
91 |
5 u |
|
Change |
- 53 |
- 2 u |
|
After |
38 |
3 u |
59 |
40% =
40100 =
25 Number of stamps that Linda left
= 91 - 53
= 38
Number of cards that Linda left
= 59 - 38
= 21
3 u = 21
1 u = 21 ÷ 3 = 7
Number of cards that Linda had at first
= 5 u
= 5 x 7
= 35
Answer(s): 35