Shiyun has 2 times as many erasers as Rachel. Rachel has
38 as many erasers as Gillian. If the three of them have a total of 119 erasers, how many erasers does Shiyun have?
| Shiyun |
Rachel |
Gillian |
| 2x3 |
1x3 |
|
| |
3x1 |
8x1 |
| 6 u |
3 u |
8 u |
The number of erasers that Rachel has is repeated. Make the number of erasers that Rachel has the same. LCM of 1 and 3 is 3.
Total number of erasers that the three of them have
= 6 u + 3 u + 8 u
= 17 u
17 u = 119
1 u = 119 ÷ 17 = 7
Number of erasers that Shiyun has
= 6 u
= 6 x 7
= 42
Answer(s): 42
