Min and Pamela have $250. Olivia and Min have $304. The ratio of Pamela to Olivia is 2 : 5. How much does Min have?
Amount that Pamela has = 2 u
Amount that Olivia has = 5 u
The amount that Min has is the repeated identity.
Min + 2 u = 250 --- (1)
Min + 5 u = 304 --- (2)
(2) - (1)
5 u - 2 u = 304 - 250
3 u = 54
1 u = 54 ÷ 3 = 18
From (1):
Min + 2 u = 250
Min + 2 x 18 = 250
Min + 36 = 250
Amount that Min has
= 250 - 36
= $214
Answer(s): $214
