Shiyun has 3 times as many pens as Jean. Jean has
35 as many pens as Kylie. If the three of them have a total of 102 pens, how many pens does Kylie have?
Shiyun |
Jean |
Kylie |
3x3 |
1x3 |
|
|
3x1 |
5x1 |
9 u |
3 u |
5 u |
The number of pens that Jean has is repeated. Make the number of pens that Jean has the same. LCM of 1 and 3 is 3.
Total number of pens that the three of them have
= 9 u + 3 u + 5 u
= 17 u
17 u = 102
1 u = 102 ÷ 17 = 6
Number of pens that Kylie has
= 5 u
= 5 x 6
= 30
Answer(s): 30