The ratio of Adam's money to Bryan's money is 3 : 1.
The ratio of Bryan's money to Charlie's money is 6 : 1.
The total amount that they have is $200.
How much more money does Adam have than Charlie?
Adam |
Bryan |
Charlie |
3 x 6 |
1 x 6 |
|
|
6 x 1 |
1 x 1 |
18 u |
6 u |
1 u |
Amount that Bryan has is the repeated identity.
Make the amount that Bryan has the same using the LCM of 1 and 6.
LCM of 1 and 6 = 6
Adam : Bryan : Charlie
18 : 6 : 1
Total amount that Adam, Bryan and Charlie have
= 18 u + 6 u + 1 u
= 25 u
25 u = 200
1 u = 200 ÷ 25 = 8
Amount that Adam has more than Charlie
= 18 u - 1 u
= 17 u
= 17 x 8
= $136
Answer(s): $136