Emma and Min have $124. Jaslyn and Emma have $204. The ratio of Min to Jaslyn is 1 : 5. How much does Emma have?
Amount that Min has = 1 u
Amount that Jaslyn has = 5 u
The amount that Emma has is the repeated identity.
Emma + 1 u = 124 --- (1)
Emma + 5 u = 204 --- (2)
(2) - (1)
5 u - 1 u = 204 - 124
4 u = 80
1 u = 80 ÷ 4 = 20
From (1):
Emma + 1 u = 124
Emma + 1 x 20 = 124
Emma + 20 = 124
Amount that Emma has
= 124 - 20
= $104
Answer(s): $104
