Question

1 dozen pencil and eraser cost 28 while 4 pencil and 16 eraser cost 27 how much will to eraser and three pencil cost​

Answer 1

Answer:

Step-by-step explanation:

let the cost of pencil be = p

let the cost of eraser be = e

12p +12e =28

       p+e =28/12 =7/3          ∴p=7/3-e

4p + 16e =27

4(p+4e) = 27

 p+4e = 27/4

7/3 -e +4e =27/4 ..................................

i will continue later...............................................