A business bought three types of computer programs to be used in offices at different locations. The first costs $35 each and uses 190 MB of memory; the second costs $50 each and uses 225 MB of memory; and the third costs $60 each and uses 130 MB of memory. If as many of the third type were purchased as the other two combined, with a total cost of $2600 and total memory requirement of 8525 MB, how many of each were purchased?