Kathy has 4 times as many pens as Shiyun. Shiyun has
67 as many pens as Eva. If the three of them have a total of 74 pens, how many pens does Kathy have?
| Kathy |
Shiyun |
Eva |
| 4x6 |
1x6 |
|
| |
6x1 |
7x1 |
| 24 u |
6 u |
7 u |
The number of pens that Shiyun has is repeated. Make the number of pens that Shiyun has the same. LCM of 1 and 6 is 6.
Total number of pens that the three of them have
= 24 u + 6 u + 7 u
= 37 u
37 u = 74
1 u = 74 ÷ 37 = 2
Number of pens that Kathy has
= 24 u
= 24 x 2
= 48
Answer(s): 48
