3 pencils cost $.03 more than 2 pen,and 1 pen

Question

and 10 pencils together cost $2.40.Determine the
cost of each writing tool

Answer 1

Set up system of equations as:
Let c=pencil, p=pen, and work in cents
3c-2p=3
10c+p=240
Solve for p and c (both have to be integers).

Answer 2

Pen is 1.17
Pencils is 1.23