PSLE At first, Marion had 51 coins and some stamps. After she gave away 9 coins and 60% of the stamps, she had a total of 48 coins and stamps. How many stamps did Marion give away?
|
Coins |
Stamps |
Total |
Before |
51 |
5 u |
|
Change |
- 9 |
- 3 u |
|
After |
42 |
2 u |
48 |
60% =
60100 =
35 Number of coins that Marion left
= 51 - 9
= 42
Number of stamps that Marion left
= 48 - 42
= 6
2 u = 6
1 u = 6 ÷ 2 = 3
Number of stamps that Marion gave away
= 3 u
= 3 x 3
= 9
Answer(s): 9