Roshel and Julie have $212. Kimberly and Roshel have $222. The ratio of Julie to Kimberly is 1 : 2. How much does Roshel have?
Amount that Julie has = 1 u
Amount that Kimberly has = 2 u
The amount that Roshel has is the repeated identity.
Roshel + 1 u = 212 --- (1)
Roshel + 2 u = 222 --- (2)
(2) - (1)
2 u - 1 u = 222 - 212
1 u = 10
From (1):
Roshel + 1 u = 212
Roshel + 1 x 10 = 212
Roshel + 10 = 212
Amount that Roshel has
= 212 - 10
= $202
Answer(s): $202
