Shiyun has 2 times as many pencils as Pamela. Pamela has
58 as many pencils as Xuan. If the three of them have a total of 207 pencils, how many pencils does Xuan have?
| Shiyun |
Pamela |
Xuan |
| 2x5 |
1x5 |
|
| |
5x1 |
8x1 |
| 10 u |
5 u |
8 u |
The number of pencils that Pamela has is repeated. Make the number of pencils that Pamela has the same. LCM of 1 and 5 is 5.
Total number of pencils that the three of them have
= 10 u + 5 u + 8 u
= 23 u
23 u = 207
1 u = 207 ÷ 23 = 9
Number of pencils that Xuan has
= 8 u
= 8 x 9
= 72
Answer(s): 72
