The ratio of Xavier's to Cole's money is 6 : 5. The ratio of Cole's to Harry's money is 3 : 5. If Xavier has $270, how much more does Harry have than Cole?
Xavier |
Cole |
Harry |
6x3 |
5x3 |
|
|
3x5 |
5x5 |
18 u |
15 u |
25 u |
The amount that Cole has is the repeated identity.
Use LCM to make it the same.
LCM of 5 and 3 = 15
Amount that Xavier has = 18 u
18 u = 270
1 u = 270 ÷ 18 = 15
Amount that Harry has more than Cole
= 25 u - 15 u
= 10 u
= 10 x 15
= $150
Answer(s): $150