The ratio of Bryan's money to Adam's money is 9 : 5.
The ratio of Adam's money to Charlie's money is 2 : 1.
The total amount that they have is $132.
How much less money does Charlie have than Bryan?
Bryan |
Adam |
Charlie |
9 x 2 |
5 x 2 |
|
|
2 x 5 |
1 x 5 |
18 u |
10 u |
5 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 5 and 2.
LCM of 5 and 2 = 10
Bryan : Adam : Charlie
18 : 10 : 5
Total amount that Bryan, Adam and Charlie have
= 18 u + 10 u + 5 u
= 33 u
33 u = 132
1 u = 132 ÷ 33 = 4
Amount that Charlie has less than Bryan
= 18 u - 5 u
= 13 u
= 13 x 4
= $52
Answer(s): $52