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Hard Maths Cube Riddle

Hard Maths Cube Riddle - 19 March

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.

How many remain now?


For Solution : Click Here

9 comments:

  1. Im not sure about this ... either I am wrong or the question is pretty simple ... 900.

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  2. If you take off 1 layer
    It should rest a 8x8x8 smallers cubes
    or 512 cubes

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  3. if you take one layer, its only 10 individual cubes of the top layer.. so you are left with 990.

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  4. probably 940 is remaining.. as we take out the top layer comprising of 100 cubes and each cube has 6 faces which means 10 x 6 = 60 will be taken off from the top layer and the remaining would be 940.

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  5. Top layer and bottom layer are 10X10=100*2= 200
    Remaining four outer layers are 72 squares each (8*9) 72*4=288

    488-1000=512 :D

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