Let, the initial price of each pencil is Tk. x
And the initial price of each eraser is Tk y
According the questions, 5x+6y= 80 …………..(i)
After price increase of pencil, the new price I pencil is (x+20% of x) Tk.
tk.
According to the question,
Now, multiplying equation (i) by 5 and equation (ii) by 2 and subtracting equation (ii) from equation (i) we get ,
New price of a pencil will be = tk.
ans. The new price of each pencil is 12 Tk.