The dimensions of an open box are 52, 40 and 29 cms. Its thickness is 2 cms. If 1 cm3 of metal used in the box weighs 0.5 gms, the weight of the box is?  Choose the correct choice from the following answers:
A) 8.56 kg
B) 7.76 kg
C) 7.756 kg
D) 6.832 kg
E) 6.932 kg
52 * 40 * 29= 
<gadget id="calculator">52 * 40 * 29</gadget>
<output>60_320</output>
60320   48 * 36 * 27= 46650   ------------   13664   13664 * 1/2= 
<gadget id="calculator">13664 * 1/2</gadget>
<output>6_832</output>
6832=&gt; 6.832 kg   ANSWER:6.832 kg
<result>D</result>
The dimensions of an open box are 52, 40 and 29 cms. Its thickness is 2 cms. If 1 cm3 of metal used in the box weighs 0.5 gms, the weight of the box is?