The ratio of Dylan's to Jeremy's money is 5 : 9. The ratio of Jeremy's to Vincent's money is 3 : 4. If Dylan has $65, how much less does Jeremy have than Vincent?
| Dylan |
Jeremy |
Vincent |
| 5x1 |
9x1 |
|
| |
3x3 |
4x3 |
| 5 u |
9 u |
12 u |
The amount that Jeremy has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 3 = 9
Amount that Dylan has = 5 u
5 u = 65
1 u = 65 ÷ 5 = 13
Amount that Jeremy has less than Vincent
= 12 u - 9 u
= 3 u
= 3 x 13
= $39
Answer(s): $39
