The ratio of Lee's to Eric's money is 4 : 5. The ratio of Eric's to Dylan's money is 3 : 4. If Lee has $192, how much more does Dylan have than Eric?
| Lee |
Eric |
Dylan |
| 4x3 |
5x3 |
|
| |
3x5 |
4x5 |
| 12 u |
15 u |
20 u |
The amount that Eric has is the repeated identity.
Use LCM to make it the same.
LCM of 5 and 3 = 15
Amount that Lee has = 12 u
12 u = 192
1 u = 192 ÷ 12 = 16
Amount that Dylan has more than Eric
= 20 u - 15 u
= 5 u
= 5 x 16
= $80
Answer(s): $80
