The ratio of Charlie's money to Bryan's money is 5 : 2.
The ratio of Bryan's money to Adam's money is 6 : 5.
The total amount that they have is $520.
How much less money does Adam have than Charlie?
Charlie |
Bryan |
Adam |
5 x 3 |
2 x 3 |
|
|
6 x 1 |
5 x 1 |
15 u |
6 u |
5 u |
Amount that Bryan has is the repeated identity.
Make the amount that Bryan has the same using the LCM of 2 and 6.
LCM of 2 and 6 = 6
Charlie : Bryan : Adam
15 : 6 : 5
Total amount that Charlie, Bryan and Adam have
= 15 u + 6 u + 5 u
= 26 u
26 u = 520
1 u = 520 ÷ 26 = 20
Amount that Adam has less than Charlie
= 15 u - 5 u
= 10 u
= 10 x 20
= $200
Answer(s): $200