Question

Gi) 5 pencils and 7 pens together cost 50, whereas 7 pencils and 5 pens together
cost 46. Find the cost of one pencil and that of one pen.​

Answer 1

Step-by-step explanation:

I hope this is help full to you

Answer 2

Answer:

pencil =3

Pen = 5

Step-by-step explanation:

let, pencil be x and pen be y

5x +7y =50 -(i)

7x +5y=46 -(ii)

subtracting (ii) from (i)

we get , -x+y=2

y = 2 + x

now , putting y in (i)

5x + 7 (2+x) = 50

12x + 14 = 50

x = 36/12

x=3

then , y = 2 + 3

y = 5

HOPE IT HELP YOU