The ratio of Japheth's to Ahmad's money is 3 : 10. The ratio of Ahmad's to Sam's money is 4 : 5. If Japheth has $114, how much more does Sam have than Ahmad?
| Japheth |
Ahmad |
Sam |
| 3x2 |
10x2 |
|
| |
4x5 |
5x5 |
| 6 u |
20 u |
25 u |
The amount that Ahmad has is the repeated identity.
Use LCM to make it the same.
LCM of 10 and 4 = 20
Amount that Japheth has = 6 u
6 u = 114
1 u = 114 ÷ 6 = 19
Amount that Sam has more than Ahmad
= 25 u - 20 u
= 5 u
= 5 x 19
= $95
Answer(s): $95
