Lucy, Fiona and Xandra have 605 pens. Lucy has
56 as many pens as Fiona. Xandra's pens is
14 of the total number of Lucy's and Fiona's pens. How many pens must Fiona give to Xandra so that both Lucy and Xandra will have the same number of pens?
Lucy |
Fiona |
Xandra |
Total |
4x11 = 44 u |
1x11 = 11 u |
|
5x4 = 20 u |
6x4 = 24 u |
|
|
20 u |
24 u |
11 u |
605 |
Total number of pens
= 20 u + 24 u + 11 u
= 55 u
55 u = 605
1 u = 605 ÷ 55 = 11
Lucy |
Fiona |
Xandra |
Total |
20 u |
24 u |
11 u |
605 |
|
- 9 u |
+ 9 u |
|
20 u |
15 u |
20 u |
605 |
Number of pens that Fiona must give to Xandra
= 20 u - 11 u
= 9 u
= 9 x 11
= 99
Answer(s): 99