Min and Kylie have $206. Tiffany and Min have $258. The ratio of Kylie to Tiffany is 1 : 5. How much does Min have?
Amount that Kylie has = 1 u
Amount that Tiffany has = 5 u
The amount that Min has is the repeated identity.
Min + 1 u = 206 --- (1)
Min + 5 u = 258 --- (2)
(2) - (1)
5 u - 1 u = 258 - 206
4 u = 52
1 u = 52 ÷ 4 = 13
From (1):
Min + 1 u = 206
Min + 1 x 13 = 206
Min + 13 = 206
Amount that Min has
= 206 - 13
= $193
Answer(s): $193
