The ratio of Bryan's money to Adam's money is 9 : 7.
The ratio of Adam's money to Charlie's money is 2 : 1.
The total amount that they have is $234.
How much more money does Bryan have than Charlie?
Bryan |
Adam |
Charlie |
9 x 2 |
7 x 2 |
|
|
2 x 7 |
1 x 7 |
18 u |
14 u |
7 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 7 and 2.
LCM of 7 and 2 = 14
Bryan : Adam : Charlie
18 : 14 : 7
Total amount that Bryan, Adam and Charlie have
= 18 u + 14 u + 7 u
= 39 u
39 u = 234
1 u = 234 ÷ 39 = 6
Amount that Bryan has more than Charlie
= 18 u - 7 u
= 11 u
= 11 x 6
= $66
Answer(s): $66