The ratio of Charlie's money to Adam's money is 3 : 2.
The ratio of Adam's money to Bryan's money is 4 : 3.
The total amount that they have is $130.
How much more money does Charlie have than Bryan?
Charlie |
Adam |
Bryan |
3 x 2 |
2 x 2 |
|
|
4 x 1 |
3 x 1 |
6 u |
4 u |
3 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 2 and 4.
LCM of 2 and 4 = 4
Charlie : Adam : Bryan
6 : 4 : 3
Total amount that Charlie, Adam and Bryan have
= 6 u + 4 u + 3 u
= 13 u
13 u = 130
1 u = 130 ÷ 13 = 10
Amount that Charlie has more than Bryan
= 6 u - 3 u
= 3 u
= 3 x 10
= $30
Answer(s): $30