Question. 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________?
  1. 8.56 kg
  2. 7.76 kg
  3. 7.756 kg
  4. 6.832 kg