Vanessa has 3 times as many pencils as Roshel. Roshel has
47 as many pencils as Shiyun. If the three of them have a total of 230 pencils, how many pencils does Shiyun have?
| Vanessa |
Roshel |
Shiyun |
| 3x4 |
1x4 |
|
| |
4x1 |
7x1 |
| 12 u |
4 u |
7 u |
The number of pencils that Roshel has is repeated. Make the number of pencils that Roshel has the same. LCM of 1 and 4 is 4.
Total number of pencils that the three of them have
= 12 u + 4 u + 7 u
= 23 u
23 u = 230
1 u = 230 ÷ 23 = 10
Number of pencils that Shiyun has
= 7 u
= 7 x 10
= 70
Answer(s): 70
