The ratio of Owen's to George's money is 7 : 3. The ratio of George's to Henry's money is 4 : 5. If Owen has $392, how much more does Henry have than George?
| Owen |
George |
Henry |
| 7x4 |
3x4 |
|
| |
4x3 |
5x3 |
| 28 u |
12 u |
15 u |
The amount that George has is the repeated identity.
Use LCM to make it the same.
LCM of 3 and 4 = 12
Amount that Owen has = 28 u
28 u = 392
1 u = 392 ÷ 28 = 14
Amount that Henry has more than George
= 15 u - 12 u
= 3 u
= 3 x 14
= $42
Answer(s): $42
