PSLE At first, Shiyun had 91 stickers and some coins. After she gave away 79 stickers and 25% of the coins, she had a total of 42 stickers and coins. How many coins did Shiyun give away?
|
Stickers |
Coins |
Total |
Before |
91 |
4 u |
|
Change |
- 79 |
- 1 u |
|
After |
12 |
3 u |
42 |
25% =
25100 =
14 Number of stickers that Shiyun left
= 91 - 79
= 12
Number of coins that Shiyun left
= 42 - 12
= 30
3 u = 30
1 u = 30 ÷ 3 = 10
Number of coins that Shiyun gave away
= 1 u
= 1 x 10
= 10
Answer(s): 10