The ratio of Adam's money to Charlie's money is 5 : 4.
The ratio of Charlie's money to Bryan's money is 8 : 5.
The total amount that they have is $230.
How much less money does Bryan have than Adam?
Adam |
Charlie |
Bryan |
5 x 2 |
4 x 2 |
|
|
8 x 1 |
5 x 1 |
10 u |
8 u |
5 u |
Amount that Charlie has is the repeated identity.
Make the amount that Charlie has the same using the LCM of 4 and 8.
LCM of 4 and 8 = 8
Adam : Charlie : Bryan
10 : 8 : 5
Total amount that Adam, Charlie and Bryan have
= 10 u + 8 u + 5 u
= 23 u
23 u = 230
1 u = 230 ÷ 23 = 10
Amount that Bryan has less than Adam
= 10 u - 5 u
= 5 u
= 5 x 10
= $50
Answer(s): $50