PSLE At first, Wendy had 86 erasers and some beads. After she gave away 68 erasers and 60% of the beads, she had a total of 36 erasers and beads. How many beads did Wendy give away?
|
Erasers |
Beads |
Total |
Before |
86 |
5 u |
|
Change |
- 68 |
- 3 u |
|
After |
18 |
2 u |
36 |
60% =
60100 =
35 Number of erasers that Wendy left
= 86 - 68
= 18
Number of beads that Wendy left
= 36 - 18
= 18
2 u = 18
1 u = 18 ÷ 2 = 9
Number of beads that Wendy gave away
= 3 u
= 3 x 9
= 27
Answer(s): 27