The ratio of Japheth's to Peter's money is 5 : 9. The ratio of Peter's to Julian's money is 4 : 5. If Japheth has $380, how much more does Julian have than Peter?
| Japheth |
Peter |
Julian |
| 5x4 |
9x4 |
|
| |
4x9 |
5x9 |
| 20 u |
36 u |
45 u |
The amount that Peter has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 4 = 36
Amount that Japheth has = 20 u
20 u = 380
1 u = 380 ÷ 20 = 19
Amount that Julian has more than Peter
= 45 u - 36 u
= 9 u
= 9 x 19
= $171
Answer(s): $171
