The ratio of Adam's money to Bryan's money is 6 : 5.
The ratio of Bryan's money to Charlie's money is 2 : 1.
The total amount that they have is $135.
How much less money does Charlie have than Adam?
Adam |
Bryan |
Charlie |
6 x 2 |
5 x 2 |
|
|
2 x 5 |
1 x 5 |
12 u |
10 u |
5 u |
Amount that Bryan has is the repeated identity.
Make the amount that Bryan has the same using the LCM of 5 and 2.
LCM of 5 and 2 = 10
Adam : Bryan : Charlie
12 : 10 : 5
Total amount that Adam, Bryan and Charlie have
= 12 u + 10 u + 5 u
= 27 u
27 u = 135
1 u = 135 ÷ 27 = 5
Amount that Charlie has less than Adam
= 12 u - 5 u
= 7 u
= 7 x 5
= $35
Answer(s): $35