Irene has 2 times as many cards as Penelope. Penelope has
35 as many cards as Tammy. If the three of them have a total of 168 cards, how many cards does Tammy have?
| Irene |
Penelope |
Tammy |
| 2x3 |
1x3 |
|
| |
3x1 |
5x1 |
| 6 u |
3 u |
5 u |
The number of cards that Penelope has is repeated. Make the number of cards that Penelope has the same. LCM of 1 and 3 is 3.
Total number of cards that the three of them have
= 6 u + 3 u + 5 u
= 14 u
14 u = 168
1 u = 168 ÷ 14 = 12
Number of cards that Tammy has
= 5 u
= 5 x 12
= 60
Answer(s): 60
