The ratio of the number of shirts to the number of caps that Remus had was in the ratio 8:5. The cost of each shirt was $20 while the cost of each cap was $4. The total cost of all the items was $900. How many caps did Remus have at first?
+36915 s/c = 8/5
s = 8/5 c
8/5 c * 20 + c * 4 = 900
c = 25 then s = 40
