The outer dimensions of a closed wooden box are 10 cm by 8 cm by 7 cm.Thickness of the wood is 1 cm. Find the total cost of the wood required to make box if 1 cm3 of wood costs Rs 2.00.
see outer volume of box =8*!0*7=560 inner volume =8-2*10-2*7-2=6*8*5=240 as its thickness is 1 cm so volume of wood used =outer vol-inner vol=560-240=320cm3 so cost =vol of wood *price =640 rs pls like it