The ratio of Albert's to Tim's money is 4 : 9. The ratio of Tim's to Cole's money is 4 : 5. If Albert has $224, how much more does Cole have than Tim?
Albert |
Tim |
Cole |
4x4 |
9x4 |
|
|
4x9 |
5x9 |
16 u |
36 u |
45 u |
The amount that Tim has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 4 = 36
Amount that Albert has = 16 u
16 u = 224
1 u = 224 ÷ 16 = 14
Amount that Cole has more than Tim
= 45 u - 36 u
= 9 u
= 9 x 14
= $126
Answer(s): $126