PSLE At first, Esther had 69 stamps and some pens. After she gave away 44 stamps and 30% of the pens, she had a total of 67 stamps and pens. How many pens did Esther give away?
|
Stamps |
Pens |
Total |
Before |
69 |
10 u |
|
Change |
- 44 |
- 3 u |
|
After |
25 |
7 u |
67 |
30% =
30100 =
310 Number of stamps that Esther left
= 69 - 44
= 25
Number of pens that Esther left
= 67 - 25
= 42
7 u = 42
1 u = 42 ÷ 7 = 6
Number of pens that Esther gave away
= 3 u
= 3 x 6
= 18
Answer(s): 18