Penelope has 3 times as many erasers as Min. Min has
27 as many erasers as Kimberly. If the three of them have a total of 75 erasers, how many erasers does Penelope have?
| Penelope |
Min |
Kimberly |
| 3x2 |
1x2 |
|
| |
2x1 |
7x1 |
| 6 u |
2 u |
7 u |
The number of erasers that Min has is repeated. Make the number of erasers that Min has the same. LCM of 1 and 2 is 2.
Total number of erasers that the three of them have
= 6 u + 2 u + 7 u
= 15 u
15 u = 75
1 u = 75 ÷ 15 = 5
Number of erasers that Penelope has
= 6 u
= 6 x 5
= 30
Answer(s): 30
