Math Help

guest27 · Post by **guest27** » Fri Oct 19, 2007 10:27 am

Set of bricks contains 27 identical cube shaped bricks. The bricks fit exactly into a cube shaped box. When the top of the box is opened, how many bricks can be seen.

Answer with explanation pls.

SM · Post by SM » Fri Oct 19, 2007 10:44 am

The cube root of the total tells you the length of each side of the cube.

The cube route of 27 is 3 (3x3x3=27) so each side of the cube will be 3 cubes long.

Opening the top of the box will allow you to see one face of the cube which will be 3x3 bricks.

So the answer is 9 bricks.

Charlotte67 · Post by **Charlotte67** » Fri Oct 19, 2007 10:45 am

ans: 6. 3x3x3=27. i.e 3 cubed. Opening top of box will show 3 rows of 3

Charlotte67 · Post by **Charlotte67** » Fri Oct 19, 2007 10:47 am

Doh, I meant 9!!! See how easy it is for these poor cjioldren to make kistakes!!!

guest27 · Post by **guest27** » Fri Oct 19, 2007 10:55 am

Thank you, i was unable to explain it to son.