The ratio of Henry's to Bryan's money is 5 : 8. The ratio of Bryan's to Liam's money is 4 : 5. If Henry has $80, how much more does Liam have than Bryan?
| Henry |
Bryan |
Liam |
| 5x1 |
8x1 |
|
| |
4x2 |
5x2 |
| 5 u |
8 u |
10 u |
The amount that Bryan has is the repeated identity.
Use LCM to make it the same.
LCM of 8 and 4 = 8
Amount that Henry has = 5 u
5 u = 80
1 u = 80 ÷ 5 = 16
Amount that Liam has more than Bryan
= 10 u - 8 u
= 2 u
= 2 x 16
= $32
Answer(s): $32
