Discussion :: Cube and Cuboid - Cube and Cuboid 8 (Q.No.2)
- Cube and Cuboid - Introduction
- Cube and Cuboid - Cube and Cuboid 1
- Cube and Cuboid - Cube and Cuboid 2
- Cube and Cuboid - Cube and Cuboid 3
- Cube and Cuboid - Cube and Cuboid 4
- Cube and Cuboid - Cube and Cuboid 5
- Cube and Cuboid - Cube and Cuboid 6
- Cube and Cuboid - Cube and Cuboid 7
- «« Cube and Cuboid - Cube and Cuboid 8
- Cube and Cuboid - Cube and Cuboid 9
There are 128 cubes with me which are coloured according to two schemes viz.
- 64 cubes each having two red adjacent faces and one yellow and other blue on their opposite faces while green on the rest.
- 64 cubes each having two adjacent blue faces and one red and other green on their opposite faces, while red on the rest. They are then mixed up.
| Krishna said: (Sep 12, 2010) | |
| How do the second 64 cubes contain (64*3=192). How it is 3 faces with red colour? | |
| Rohitkr said: (Aug 5, 2011) | |
| Ans should be 256. (64*2+64*2) No. of red faces among first cube = 64*2 = 128. No. of red faces among Second cube = 64*2 = 128. ---------------- Total no. of red faces = 256. ---------------- |
|
| Shekhar Ghate said: (Nov 6, 2011) | |
| The second cube have three faces red. Two opposite to two adjacent blue (rest in question) and one opposite to green. Therefore 320 is correct answer. | |
| Don said: (Aug 16, 2014) | |
| No.of red faces in 1st cube(64*2) = 128 because 2 red colours are painted. No.of red faces in 2nd cube(64*3) = 192 because 3 red colours are painted. Total no.of red faces = 320. |
|
| Sanyam said: (Jun 15, 2016) | |
| According to me, There are 2 faces colored red in the 1st cube. So 32 red faces are there in the first cube. In the 2nd cube, there are 3 red colored faces. So red faces in the second cube = 48. So total no of red faces = 48 + 32 = 80. |
|
| Madhura said: (Feb 12, 2019) | |
| How come 3 red faces in 2nd cube, can anyone explain? | |
| Vivek said: (Oct 30, 2020) | |
| In the second cube we have, 2 adjacent faces with blue, 1 face with red and opposite to that 1 green colour is there. So 4 faces are coloured as of now. The remaining 2 faces are colored with red. So total of 3 red faces are there. | |
Post your comments here:
Name *:
Email : (optional)
» Your comments will be displayed only after manual approval.