Anna and Roshel have $233. Winnie and Anna have $251. The ratio of Roshel to Winnie is 1 : 2. How much does Anna have?
Amount that Roshel has = 1 u
Amount that Winnie has = 2 u
The amount that Anna has is the repeated identity.
Anna + 1 u = 233 --- (1)
Anna + 2 u = 251 --- (2)
(2) - (1)
2 u - 1 u = 251 - 233
1 u = 18
From (1):
Anna + 1 u = 233
Anna + 1 x 18 = 233
Anna + 18 = 233
Amount that Anna has
= 233 - 18
= $215
Answer(s): $215
