The ratio of Tim's to Seth's money is 3 : 4. The ratio of Seth's to Owen's money is 3 : 4. If Tim has $153, how much more does Owen have than Seth?
Tim |
Seth |
Owen |
3x3 |
4x3 |
|
|
3x4 |
4x4 |
9 u |
12 u |
16 u |
The amount that Seth has is the repeated identity.
Use LCM to make it the same.
LCM of 4 and 3 = 12
Amount that Tim has = 9 u
9 u = 153
1 u = 153 ÷ 9 = 17
Amount that Owen has more than Seth
= 16 u - 12 u
= 4 u
= 4 x 17
= $68
Answer(s): $68