Xandra has 2 times as many pens as Gabby. Gabby has
45 as many pens as Erika. If the three of them have a total of 119 pens, how many pens does Xandra have?
Xandra |
Gabby |
Erika |
2x4 |
1x4 |
|
|
4x1 |
5x1 |
8 u |
4 u |
5 u |
The number of pens that Gabby has is repeated. Make the number of pens that Gabby has the same. LCM of 1 and 4 is 4.
Total number of pens that the three of them have
= 8 u + 4 u + 5 u
= 17 u
17 u = 119
1 u = 119 ÷ 17 = 7
Number of pens that Xandra has
= 8 u
= 8 x 7
= 56
Answer(s): 56