PSLE At first, Risa had 80 stickers and some beads. After she gave away 65 stickers and 30% of the beads, she had a total of 43 stickers and beads. How many beads did Risa give away?
|
Stickers |
Beads |
Total |
Before |
80 |
10 u |
|
Change |
- 65 |
- 3 u |
|
After |
15 |
7 u |
43 |
30% =
30100 =
310 Number of stickers that Risa left
= 80 - 65
= 15
Number of beads that Risa left
= 43 - 15
= 28
7 u = 28
1 u = 28 ÷ 7 = 4
Number of beads that Risa gave away
= 3 u
= 3 x 4
= 12
Answer(s): 12