The ratio of Valen's to Gabriel's money is 7 : 5. The ratio of Gabriel's to John's money is 3 : 5. If Valen has $336, how much more does John have than Gabriel?
| Valen |
Gabriel |
John |
| 7x3 |
5x3 |
|
| |
3x5 |
5x5 |
| 21 u |
15 u |
25 u |
The amount that Gabriel has is the repeated identity.
Use LCM to make it the same.
LCM of 5 and 3 = 15
Amount that Valen has = 21 u
21 u = 336
1 u = 336 ÷ 21 = 16
Amount that John has more than Gabriel
= 25 u - 15 u
= 10 u
= 10 x 16
= $160
Answer(s): $160
