PSLE At first, Kylie had 57 cards and some pens. After she gave away 29 cards and 40% of the pens, she had a total of 58 cards and pens. How many pens did Kylie give away?
|
Cards |
Pens |
Total |
Before |
57 |
5 u |
|
Change |
- 29 |
- 2 u |
|
After |
28 |
3 u |
58 |
40% =
40100 =
25 Number of cards that Kylie left
= 57 - 29
= 28
Number of pens that Kylie left
= 58 - 28
= 30
3 u = 30
1 u = 30 ÷ 3 = 10
Number of pens that Kylie gave away
= 2 u
= 2 x 10
= 20
Answer(s): 20