Question

21 pencils and 29 pens cost Rs.79. But if the number of pencils and pens were interchanged, the cost would have reduced by Rs.8. Find the cost of each pen

Answer 1

Step-by-step explanation:

cost of pen is 2

21 pencil +29 pen =79. ¹

21 pen+29 pencil=71. ²

1-2

Answer 2

Step-by-step explanation:

it is your question answer