The ratio of Bryan's money to Adam's money is 9 : 1.
The ratio of Adam's money to Charlie's money is 3 : 2.
The total amount that they have is $512.
How much less money does Charlie have than Bryan?
Bryan |
Adam |
Charlie |
9 x 3 |
1 x 3 |
|
|
3 x 1 |
2 x 1 |
27 u |
3 u |
2 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 1 and 3.
LCM of 1 and 3 = 3
Bryan : Adam : Charlie
27 : 3 : 2
Total amount that Bryan, Adam and Charlie have
= 27 u + 3 u + 2 u
= 32 u
32 u = 512
1 u = 512 ÷ 32 = 16
Amount that Charlie has less than Bryan
= 27 u - 2 u
= 25 u
= 25 x 16
= $400
Answer(s): $400