Min has 2 times as many cards as Kathy. Kathy has
38 as many cards as Esther. If the three of them have a total of 153 cards, how many cards does Esther have?
| Min |
Kathy |
Esther |
| 2x3 |
1x3 |
|
| |
3x1 |
8x1 |
| 6 u |
3 u |
8 u |
The number of cards that Kathy has is repeated. Make the number of cards that Kathy has the same. LCM of 1 and 3 is 3.
Total number of cards that the three of them have
= 6 u + 3 u + 8 u
= 17 u
17 u = 153
1 u = 153 ÷ 17 = 9
Number of cards that Esther has
= 8 u
= 8 x 9
= 72
Answer(s): 72
