Mathematics
The external dimensions of a closed rectangular box are 82 cm x 47 cm x 60 cm. If it is made of wood of 1 cm thickness, the internal dimensions of the box are :
80 cm x 47 cm x 60 cm
82 cm x 45 cm x 60 cm
82 cm x 47 cm x 58 cm
80 cm x 45 cm x 58 cm
Surface Area, Volume, Capacity
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Answer
Given:
Outer length of the box = 82 cm
Outer width of the box = 47 cm
Outer height of the box = 60 cm
Thickness of wood = 1 cm
Internal length = 82 - 1 - 1 cm = 82 - 2 cm = 80 cm
Internal width = 47 - 1 - 1 cm = 47 - 2 cm = 45 cm
Internal height = 60 - 1 - 1 cm = 60 - 2 cm = 58 cm
Hence, option 4 is the correct option.
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