Question
The number of brown files is twice the number of green files. The number of green files is 5 more than the number of purple files. The total number of files is 111. The cost of each brown file is $3.60 and the cost of each purple file is $2.90. The total cost of all the files is $321.90.
  1. Find the number of purple files.
  2. Find the cost of a green file.
5 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The number of brown files is twice the number of green files. The number of green files is 5 more than the number of purple files. The total number of files is 111. The cost of each brown file is $3.60 and the cost of each purple file is $2.90. The total cost of all the files is $321.90.
  1. Find the number of purple files.
  2. Find the cost of a green file.