PSLE At first, Shiyun had 71 buttons and some coins. After she gave away 39 buttons and 60% of the coins, she had a total of 46 buttons and coins. How many coins did Shiyun give away?
|
Buttons |
Coins |
Total |
Before |
71 |
5 u |
|
Change |
- 39 |
- 3 u |
|
After |
32 |
2 u |
46 |
60% =
60100 =
35 Number of buttons that Shiyun left
= 71 - 39
= 32
Number of coins that Shiyun left
= 46 - 32
= 14
2 u = 14
1 u = 14 ÷ 2 = 7
Number of coins that Shiyun gave away
= 3 u
= 3 x 7
= 21
Answer(s): 21