The ratio of Archie's to Reggie's money is 5 : 3. The ratio of Reggie's to Cole's money is 4 : 5. If Archie has $260, how much more does Cole have than Reggie?
| Archie |
Reggie |
Cole |
| 5x4 |
3x4 |
|
| |
4x3 |
5x3 |
| 20 u |
12 u |
15 u |
The amount that Reggie has is the repeated identity.
Use LCM to make it the same.
LCM of 3 and 4 = 12
Amount that Archie has = 20 u
20 u = 260
1 u = 260 ÷ 20 = 13
Amount that Cole has more than Reggie
= 15 u - 12 u
= 3 u
= 3 x 13
= $39
Answer(s): $39
