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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.

Correct Answer: 8.04kg

Explanation:

Volume of the metal used in the box = External Volume - Internal Volume 


                                                    = [(50 x 40 x 23) - (44 x 34 x 20)] cu.cm  


                                                    = 16080 cu.cm 


 


Weight of the metal =[(16080 x 0.5)/1000] kg = 8.04 kg.


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