Lucy has 2 times as many erasers as Irene. Irene has
35 as many erasers as Raeann. If the three of them have a total of 56 erasers, how many erasers does Lucy have?
Lucy |
Irene |
Raeann |
2x3 |
1x3 |
|
|
3x1 |
5x1 |
6 u |
3 u |
5 u |
The number of erasers that Irene has is repeated. Make the number of erasers that Irene has the same. LCM of 1 and 3 is 3.
Total number of erasers that the three of them have
= 6 u + 3 u + 5 u
= 14 u
14 u = 56
1 u = 56 ÷ 14 = 4
Number of erasers that Lucy has
= 6 u
= 6 x 4
= 24
Answer(s): 24