the dimensions of an open box are 50 cm , 40 cm and 23 cm . its thickness is 2 cm . if 1 cubic cm of metal used in the box weighs 0.5 gms , find the weight of the box .
explanation : volume of the metal used in the box = external volume - internal volume = [ ( 50 x 40 x 23 ) - ( 44 x 34 x 20 ) ] cm 3 = 16080 cm 3 weight of the metal = [ ( 16080 x 0.5 ) / 1000 ] kg = 8.04 kg . answer : a
divide(multiply(subtract(multiply(multiply(50, 40), 23), multiply(multiply(subtract(50, multiply(2, const_3)), subtract(40, multiply(2, const_3))), subtract(23, const_3))), 0.5), const_1000)