Question

a pen and a pencil cost ₹ 12.three pencils and five pens cost ₹56.find the cost of one pen and one pencil​

Answer 1

Answer:

pencil=4

pen =11

This is answer

Answer 2

Answer:

cost of pencil =₹2

cost of pen = ₹10

Step-by-step explanation:

let x and y be pencil and pen

x+y = 12

3x+5y=56

by substitution

we get

x=12-y

in equation 3(12-y) + 5y =56

which gives

y =10

and putting value y=10 in x=12 - 10, we get

x= 2.