The ratio of Justin's to Howard's money is 8 : 9. The ratio of Howard's to Ryan's money is 3 : 4. If Justin has $88, how much more does Ryan have than Howard?
| Justin |
Howard |
Ryan |
| 8x1 |
9x1 |
|
| |
3x3 |
4x3 |
| 8 u |
9 u |
12 u |
The amount that Howard has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 3 = 9
Amount that Justin has = 8 u
8 u = 88
1 u = 88 ÷ 8 = 11
Amount that Ryan has more than Howard
= 12 u - 9 u
= 3 u
= 3 x 11
= $33
Answer(s): $33
