Natalie, Emily and Fiona have 280 erasers. Natalie has
34 as many erasers as Emily. Fiona's erasers is
14 of the total number of Natalie's and Emily's erasers. How many erasers must Emily give to Fiona so that both Natalie and Fiona will have the same number of erasers?
Natalie |
Emily |
Fiona |
Total |
4x7 = 28 u |
1x7 = 7 u |
|
3x4 = 12 u |
4x4 = 16 u |
|
|
12 u |
16 u |
7 u |
280 |
Total number of erasers
= 12 u + 16 u + 7 u
= 35 u
35 u = 280
1 u = 280 ÷ 35 = 8
Natalie |
Emily |
Fiona |
Total |
12 u |
16 u |
7 u |
280 |
|
- 5 u |
+ 5 u |
|
12 u |
11 u |
12 u |
280 |
Number of erasers that Emily must give to Fiona
= 12 u - 7 u
= 5 u
= 5 x 8
= 40
Answer(s): 40