The ratio of Bryan's money to Adam's money is 4 : 1.
The ratio of Adam's money to Charlie's money is 9 : 7.
The total amount that they have is $260.
How much more money does Bryan have than Charlie?
Bryan |
Adam |
Charlie |
4 x 9 |
1 x 9 |
|
|
9 x 1 |
7 x 1 |
36 u |
9 u |
7 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 1 and 9.
LCM of 1 and 9 = 9
Bryan : Adam : Charlie
36 : 9 : 7
Total amount that Bryan, Adam and Charlie have
= 36 u + 9 u + 7 u
= 52 u
52 u = 260
1 u = 260 ÷ 52 = 5
Amount that Bryan has more than Charlie
= 36 u - 7 u
= 29 u
= 29 x 5
= $145
Answer(s): $145