**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?

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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?

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

ReplyDeleteIf you take off 1 layer

ReplyDeleteIt should rest a 8x8x8 smallers cubes

or 512 cubes

yes its 512

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

ReplyDeleteprobably 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.

ReplyDelete512

ReplyDelete9*10*10 = 900

ReplyDeleteTop layer and bottom layer are 10X10=100*2= 200

ReplyDeleteRemaining four outer layers are 72 squares each (8*9) 72*4=288

488-1000=512 :D

27

ReplyDelete