Question

5 pencils and 7 pens together cost 50 rupees whenever 7 pencils and 5 pens together cost 46 rupees find the cost of one pencil and that one of pen

Answer 1

Answer:

Step-by-step explanation:

let cost of 1 pencil be x

let cost of 1 pen be y

Framing the equations..

5x+7y=50    ....(1)

7x+5y=46    ....(2)

 

solving (1) & (2)

we get x=3,y=5

cost of 1 pencil = 3

cost of 1 pen = 5

hope it helps...