Pencil Pen and Chalks Puzzle

Pencil Pen and Chalks Puzzle

1 pencil = 1 Rs
1 pen = 5 Rs and
20 chalks = 1 Rs
then
help me to buy 100 items for 100 Rs.
(all three types of items must be included)

Click here for Answer

The Answer is 19 Pen, 1 Pencil and 80 Chalks
So 19 + 1 + 80 = 100 and in Rs. 95 + 1 + 4 = 100