The ratio of Simon's to Vaidev's money is 5 : 9. The ratio of Vaidev's to Owen's money is 3 : 5. If Simon has $60, how much less does Vaidev have than Owen?
| Simon |
Vaidev |
Owen |
| 5x1 |
9x1 |
|
| |
3x3 |
5x3 |
| 5 u |
9 u |
15 u |
The amount that Vaidev has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 3 = 9
Amount that Simon has = 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Amount that Vaidev has less than Owen
= 15 u - 9 u
= 6 u
= 6 x 12
= $72
Answer(s): $72
