Barbara and Emma have $253. Jaslyn and Barbara have $267. The ratio of Emma to Jaslyn is 1 : 2. How much does Barbara have?
Amount that Emma has = 1 u
Amount that Jaslyn has = 2 u
The amount that Barbara has is the repeated identity.
Barbara + 1 u = 253 --- (1)
Barbara + 2 u = 267 --- (2)
(2) - (1)
2 u - 1 u = 267 - 253
1 u = 14
From (1):
Barbara + 1 u = 253
Barbara + 1 x 14 = 253
Barbara + 14 = 253
Amount that Barbara has
= 253 - 14
= $239
Answer(s): $239
