The ratio of Bryan's money to Charlie's money is 5 : 3.
The ratio of Charlie's money to Adam's money is 9 : 8.
The total amount that they have is $224.
How much less money does Adam have than Bryan?
Bryan |
Charlie |
Adam |
5 x 3 |
3 x 3 |
|
|
9 x 1 |
8 x 1 |
15 u |
9 u |
8 u |
Amount that Charlie has is the repeated identity.
Make the amount that Charlie has the same using the LCM of 3 and 9.
LCM of 3 and 9 = 9
Bryan : Charlie : Adam
15 : 9 : 8
Total amount that Bryan, Charlie and Adam have
= 15 u + 9 u + 8 u
= 32 u
32 u = 224
1 u = 224 ÷ 32 = 7
Amount that Adam has less than Bryan
= 15 u - 8 u
= 7 u
= 7 x 7
= $49
Answer(s): $49