Esther and Gabby have $227. Julie and Esther have $243. The ratio of Gabby to Julie is 3 : 4. How much does Esther have?
Amount that Gabby has = 3 u
Amount that Julie has = 4 u
The amount that Esther has is the repeated identity.
Esther + 3 u = 227 --- (1)
Esther + 4 u = 243 --- (2)
(2) - (1)
4 u - 3 u = 243 - 227
1 u = 16
From (1):
Esther + 3 u = 227
Esther + 3 x 16 = 227
Esther + 48 = 227
Amount that Esther has
= 227 - 48
= $179
Answer(s): $179
