# If a cube of 27 meter *meter*meter painted red from out side , if it cutinto 27 equal part , then how many cubes were there(a) no face painted -------------------------(b) only one face painted--------------------(c) only two faces painted..........................(d) three faces painted.............................

• Sep 23rd, 2006

Cube is sliced in 3 layers of 9 cubes each:a. No face painted: 1b. Only 1 face painted: as many faces as the original cube had, i.e. 6c. Only two facccce painted: as many edges as the original cube had, i.e. 12d. Three faces painted: as many sommit as the original cube had, i.e. 8=> consistency check: 1+6+12+8=27

#### nobel sharanyan.J

• Sep 23rd, 2006

area of the cube is A^3, then A^3 = 27----> A=3

1."no of cubes un painted is ONE"

2. " no of one side painted cube is 4"

3. " no of two sides painted cube is 12"

4. " no of three side painted cube is 8"

#### Jonathan

• Sep 23rd, 2006

Cube is sliced in 3 layers of 9 cubes each:a. No face painted: 1b. Only 1 face painted: as many faces as the original cube had, i.e. 6c. Only two facccce painted: as many edges as the original cube had, i.e. 12d. Three faces painted: as many sommit as the original cube had, i.e. 8=> consistency check: 1+6+12+8=27

• Dec 5th, 2006

The ans to any such cube related questions is the following formulae...let the cube be x by x by x i.e for eg. 4x4x4 cubeThen three faces painted = 8 (always 8 as they r the 8 corner cubes)only two faces painted= 6(x-2)no face painted = 12 multiplied by square of (x-2);only one face painted = cube of (x-2)

#### sudarshan

• Jan 21st, 2007

if there are  'n' cuts...(For eg:- A cube having a side of 5 cm and it is cut into 1 cm cube..then, n= 5/1=5.)

this is only for cubes..

no colour sided cubes = (n-2) power 3  (i.e. (n-2)^3)

one side coloured = (n-2)power2 multiplied by 6

two side colored = (n-2)*12

three side colored is always equal to no of corners i.e. = 8.

#### Deepak Kumar Singh

• Sep 16th, 2007

no face painted

#### papps Profile Answers by papps

• Apr 26th, 2008

i think
for (b) it is 6,,, remaining all r correct

#### sarathchowdary Profile Answers by sarathchowdary

• Jun 8th, 2008

only one face is painted

#### M V RAGHAVENDRA REDDY Profile Answers by M V RAGHAVENDRA REDDY

• Jun 22nd, 2008

#### robinmnit Profile Answers by robinmnit

• Jul 7th, 2008

no face paited=1
one face=6
2 face=12
3 face=8
4 face=0

#### neena muraleedharan Profile Answers by neena muraleedharan

• Jul 12th, 2008

(a) 18 (b)9 (c)12 (d)6

#### suyognyati Profile Answers by suyognyati

• Jul 28th, 2008

1 cube has no face painted
6 cubes are 1 side painted
12 cubes are 2 side painted
8 cubes are 3 side painted

#### deepgupta7777 Profile Answers by deepgupta7777

• Jul 29th, 2008

(a) 1
(b) 6
(c) 12
(d) 8

#### shabarish.ksr Profile Answers by shabarish.ksr

• Dec 6th, 2009

No face 1
only one face 6
only two faces 12
only three faces 8

#### soumya71 Profile Answers by soumya71

• Jan 27th, 2010

Area of the cube is A^3 then A^3 27----> A 3

1. No. of cubes unpainted is ONE
2. No. of one side painted cube is 6
3. No. of two sides painted cube is 12
4. No. of three side painted cube is 8