The ratio of Perry's to Liam's money is 6 : 5. The ratio of Liam's to Bryan's money is 3 : 5. If Perry has $198, how much more does Bryan have than Liam?
Perry |
Liam |
Bryan |
6x3 |
5x3 |
|
|
3x5 |
5x5 |
18 u |
15 u |
25 u |
The amount that Liam has is the repeated identity.
Use LCM to make it the same.
LCM of 5 and 3 = 15
Amount that Perry has = 18 u
18 u = 198
1 u = 198 ÷ 18 = 11
Amount that Bryan has more than Liam
= 25 u - 15 u
= 10 u
= 10 x 11
= $110
Answer(s): $110