PSLE At first, Gem had 71 buttons and some stamps. After she gave away 35 buttons and 60% of the stamps, she had a total of 42 buttons and stamps. How many stamps did Gem have at first?
|
Buttons |
Stamps |
Total |
Before |
71 |
5 u |
|
Change |
- 35 |
- 3 u |
|
After |
36 |
2 u |
42 |
60% =
60100 =
35 Number of buttons that Gem left
= 71 - 35
= 36
Number of stamps that Gem left
= 42 - 36
= 6
2 u = 6
1 u = 6 ÷ 2 = 3
Number of stamps that Gem had at first
= 5 u
= 5 x 3
= 15
Answer(s): 15