Tammy has 3 times as many pens as Jen. Jen has
45 as many pens as Vanessa. If the three of them have a total of 168 pens, how many pens does Tammy have?
Tammy |
Jen |
Vanessa |
3x4 |
1x4 |
|
|
4x1 |
5x1 |
12 u |
4 u |
5 u |
The number of pens that Jen has is repeated. Make the number of pens that Jen has the same. LCM of 1 and 4 is 4.
Total number of pens that the three of them have
= 12 u + 4 u + 5 u
= 21 u
21 u = 168
1 u = 168 ÷ 21 = 8
Number of pens that Tammy has
= 12 u
= 12 x 8
= 96
Answer(s): 96