PSLE At first, Fiona had 59 stickers and some marbles. After she gave away 48 stickers and 60% of the marbles, she had a total of 21 stickers and marbles. How many marbles did Fiona give away?
|
Stickers |
Marbles |
Total |
Before |
59 |
5 u |
|
Change |
- 48 |
- 3 u |
|
After |
11 |
2 u |
21 |
60% =
60100 =
35 Number of stickers that Fiona left
= 59 - 48
= 11
Number of marbles that Fiona left
= 21 - 11
= 10
2 u = 10
1 u = 10 ÷ 2 = 5
Number of marbles that Fiona gave away
= 3 u
= 3 x 5
= 15
Answer(s): 15