Fanny has 2 times as many erasers as Wendy. Wendy has
47 as many erasers as Xylia. If the three of them have a total of 57 erasers, how many erasers does Fanny have?
Fanny |
Wendy |
Xylia |
2x4 |
1x4 |
|
|
4x1 |
7x1 |
8 u |
4 u |
7 u |
The number of erasers that Wendy has is repeated. Make the number of erasers that Wendy has the same. LCM of 1 and 4 is 4.
Total number of erasers that the three of them have
= 8 u + 4 u + 7 u
= 19 u
19 u = 57
1 u = 57 ÷ 19 = 3
Number of erasers that Fanny has
= 8 u
= 8 x 3
= 24
Answer(s): 24