The ratio of Charlie's money to Adam's money is 9 : 6.
The ratio of Adam's money to Bryan's money is 9 : 7.
The total amount that they have is $177.
How much less money does Bryan have than Charlie?
Charlie |
Adam |
Bryan |
9 x 3 |
6 x 3 |
|
|
9 x 2 |
7 x 2 |
27 u |
18 u |
14 u |
Amount that Adam has is the repeated identity.
Make the amount that Adam has the same using the LCM of 6 and 9.
LCM of 6 and 9 = 18
Charlie : Adam : Bryan
27 : 18 : 14
Total amount that Charlie, Adam and Bryan have
= 27 u + 18 u + 14 u
= 59 u
59 u = 177
1 u = 177 ÷ 59 = 3
Amount that Bryan has less than Charlie
= 27 u - 14 u
= 13 u
= 13 x 3
= $39
Answer(s): $39