The ratio of Tim's to Vincent's money is 8 : 5. The ratio of Vincent's to Brandon's money is 4 : 5. If Tim has $448, how much less does Vincent have than Brandon?
| Tim |
Vincent |
Brandon |
| 8x4 |
5x4 |
|
| |
4x5 |
5x5 |
| 32 u |
20 u |
25 u |
The amount that Vincent has is the repeated identity.
Use LCM to make it the same.
LCM of 5 and 4 = 20
Amount that Tim has = 32 u
32 u = 448
1 u = 448 ÷ 32 = 14
Amount that Vincent has less than Brandon
= 25 u - 20 u
= 5 u
= 5 x 14
= $70
Answer(s): $70
