The ratio of Daniel's to Flynn's money is 5 : 6. The ratio of Flynn's to Ethan's money is 4 : 5. If Daniel has $140, how much less does Flynn have than Ethan?
| Daniel |
Flynn |
Ethan |
| 5x2 |
6x2 |
|
| |
4x3 |
5x3 |
| 10 u |
12 u |
15 u |
The amount that Flynn has is the repeated identity.
Use LCM to make it the same.
LCM of 6 and 4 = 12
Amount that Daniel has = 10 u
10 u = 140
1 u = 140 ÷ 10 = 14
Amount that Flynn has less than Ethan
= 15 u - 12 u
= 3 u
= 3 x 14
= $42
Answer(s): $42
