Nora and Nicole have $251. Xylia and Nora have $263. The ratio of Nicole to Xylia is 3 : 4. How much does Nora have?
Amount that Nicole has = 3 u
Amount that Xylia has = 4 u
The amount that Nora has is the repeated identity.
Nora + 3 u = 251 --- (1)
Nora + 4 u = 263 --- (2)
(2) - (1)
4 u - 3 u = 263 - 251
1 u = 12
From (1):
Nora + 3 u = 251
Nora + 3 x 12 = 251
Nora + 36 = 251
Amount that Nora has
= 251 - 36
= $215
Answer(s): $215
