The ratio of Owen's to Elijah's money is 3 : 8. The ratio of Elijah's to Julian's money is 4 : 5. If Owen has $48, how much less does Elijah have than Julian?
| Owen |
Elijah |
Julian |
| 3x1 |
8x1 |
|
| |
4x2 |
5x2 |
| 3 u |
8 u |
10 u |
The amount that Elijah has is the repeated identity.
Use LCM to make it the same.
LCM of 8 and 4 = 8
Amount that Owen has = 3 u
3 u = 48
1 u = 48 ÷ 3 = 16
Amount that Elijah has less than Julian
= 10 u - 8 u
= 2 u
= 2 x 16
= $32
Answer(s): $32
