The ratio of Perry's to Zane's money is 3 : 10. The ratio of Zane's to Japheth's money is 3 : 4. If Perry has $108, how much more does Japheth have than Zane?
| Perry |
Zane |
Japheth |
| 3x3 |
10x3 |
|
| |
3x10 |
4x10 |
| 9 u |
30 u |
40 u |
The amount that Zane has is the repeated identity.
Use LCM to make it the same.
LCM of 10 and 3 = 30
Amount that Perry has = 9 u
9 u = 108
1 u = 108 ÷ 9 = 12
Amount that Japheth has more than Zane
= 40 u - 30 u
= 10 u
= 10 x 12
= $120
Answer(s): $120
