The ratio of Bryan's money to Adam's money is 7 : 1.
The ratio of Adam's money to Charlie's money is 8 : 5.
The total amount that they have is $207.
How much less money does Charlie have than Bryan?
Bryan |
Adam |
Charlie |
7 x 8 |
1 x 8 |
|
|
8 x 1 |
5 x 1 |
56 u |
8 u |
5 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 1 and 8.
LCM of 1 and 8 = 8
Bryan : Adam : Charlie
56 : 8 : 5
Total amount that Bryan, Adam and Charlie have
= 56 u + 8 u + 5 u
= 69 u
69 u = 207
1 u = 207 ÷ 69 = 3
Amount that Charlie has less than Bryan
= 56 u - 5 u
= 51 u
= 51 x 3
= $153
Answer(s): $153