The ratio of Ian's to Dylan's money is 3 : 4. The ratio of Dylan's to George's money is 3 : 4. If Ian has $117, how much more does George have than Dylan?
| Ian |
Dylan |
George |
| 3x3 |
4x3 |
|
| |
3x4 |
4x4 |
| 9 u |
12 u |
16 u |
The amount that Dylan has is the repeated identity.
Use LCM to make it the same.
LCM of 4 and 3 = 12
Amount that Ian has = 9 u
9 u = 117
1 u = 117 ÷ 9 = 13
Amount that George has more than Dylan
= 16 u - 12 u
= 4 u
= 4 x 13
= $52
Answer(s): $52
