Anna, Emily and Kathy have 75 stickers. Anna has
23 as many stickers as Emily. Kathy's stickers is
14 of the total number of Anna's and Emily's stickers. How many stickers must Emily give to Kathy so that both Anna and Kathy will have the same number of stickers?
Anna |
Emily |
Kathy |
Total |
4x5 = 20 u |
1x5 = 5 u |
|
2x4 = 8 u |
3x4 = 12 u |
|
|
8 u |
12 u |
5 u |
75 |
Total number of stickers
= 8 u + 12 u + 5 u
= 25 u
25 u = 75
1 u = 75 ÷ 25 = 3
Anna |
Emily |
Kathy |
Total |
8 u |
12 u |
5 u |
75 |
|
- 3 u |
+ 3 u |
|
8 u |
9 u |
8 u |
75 |
Number of stickers that Emily must give to Kathy
= 8 u - 5 u
= 3 u
= 3 x 3
= 9
Answer(s): 9