A solid cuboid of dimensions 8 cm x 4 cm x 2 cm is melted and cast into identical cubes of edge 2 cm. Number of such identical cubes is :

  1. 8
  2. 4
  3. 10
  4. 16
Anurag Mishra Professor Asked on 27th December 2015 in Maths.
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1 Answer(s)

Answer:  (1) 8 

Explanation:-
The dimensions of a cuboid = 8 cm x 4 cm x 2 cm 
Then, the volume of the cuboid = 8 x 4 x 2 
 = 64 cm^3

The edge of identical cube = 2  cm 
Then, the volume of the cube = 2 x 2 x 2 
 = 8 cm^3

Then, the number identical cube of 2 cm = 64/8
 = 8

Hence, the correct answer is option (1) 8. 

Anurag Mishra Professor Answered on 28th December 2015.
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