Let cost of 1 pencil be 'x' So cost of 1 packet of pencils(8 pencils) =8x While the cost of 30 packets = 30*8 x=600(given) From this equation ,let us find out the value of x i.e. ,cost of one pencil: 30*8*x=600 240x=600 x=600/240 =Rs 2.5= Cost of a single pencil. Cost of 25 packets containing 12 packets each = 25*12*2.5 =Rs 750 / _________
