Q:
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.
Answer & Explanation
Answer: A) 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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