The ratio of George's to Asher's money is 7 : 9. The ratio of Asher's to Oscar's money is 3 : 5. If George has $98, how much less does Asher have than Oscar?
George |
Asher |
Oscar |
7x1 |
9x1 |
|
|
3x3 |
5x3 |
7 u |
9 u |
15 u |
The amount that Asher has is the repeated identity.
Use LCM to make it the same.
LCM of 9 and 3 = 9
Amount that George has = 7 u
7 u = 98
1 u = 98 ÷ 7 = 14
Amount that Asher has less than Oscar
= 15 u - 9 u
= 6 u
= 6 x 14
= $84
Answer(s): $84