Question

.The cost of one pencil, 3 Ball pen and 4 Ink pen is Rs. 19, the cost of 4 pencil, 2 Ball pen and 3 Ink pen is Rs. 17, again the cost of 2 pencil, 2 Ball pen and 2 Ink pen is Rs. 12. Find the value of each of them

Answer 1

Answer:

cost of pencil=1 Rs

cost of ball pen =2 Rs

cost of Ink pen =3 Rs

Explanation:

x+3y+4z=19

4x+2y+3z=17

2x+2y+2z=12

solve the equation and you will get your required answer !