PSLE At first, Joelle had 66 stickers and some coins. After she gave away 37 stickers and 30% of the coins, she had a total of 43 stickers and coins. How many coins did Joelle have at first?
|
Stickers |
Coins |
Total |
Before |
66 |
10 u |
|
Change |
- 37 |
- 3 u |
|
After |
29 |
7 u |
43 |
30% =
30100 =
310 Number of stickers that Joelle left
= 66 - 37
= 29
Number of coins that Joelle left
= 43 - 29
= 14
7 u = 14
1 u = 14 ÷ 7 = 2
Number of coins that Joelle had at first
= 10 u
= 10 x 2
= 20
Answer(s): 20