Verbal Reasoning - Cube and Cuboid - Discussion
Discussion Forum : Cube and Cuboid - Cube and Cuboid 1 (Q.No. 1)
Directions to Solve
The following questions are based on the information given below:
- A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height.
- Two faces measuring 4 cm x 1 cm are coloured in black.
- Two faces measuring 6 cm x 1 cm are coloured in red.
- Two faces measuring 6 cm x 4 cm are coloured in green.
- The block is divided into 6 equal cubes of side 1 cm (from 6 cm side), 4 equal cubes of side 1 cm(from 4 cm side).
1.
How many cubes having red, green and black colours on at least one side of the cube will be formed ?
Answer: Option
Explanation:
Such cubes are related to the corners of the cuboid. Since the number of corners of the cuboid is 4.
Hence, the number of such small cubes is 4.
Discussion:
20 comments Page 1 of 2.
Shekhar Ghate said:
1 decade ago
When one side of the cuboid is 1, there can not be 8 corners for a cuboid. In this case one will get 4 cubes having four sides painted after cutting. In the above problem the four cubes will have two opposite sides painted green, two adjascent sides painted black and red and the remaining two adjascent sides are without any colour.
If the length, breadth and height of a cube or cuboid each is more than 1, then only there could be 8 corners. In that case after cutting one can get 8 cubes having three sides painted and no cube having four sides painted.
If the length, breadth and height of a cube or cuboid each is more than 1, then only there could be 8 corners. In that case after cutting one can get 8 cubes having three sides painted and no cube having four sides painted.
John Mohammed said:
1 decade ago
Because the height of the cube itself is equal to the height of the cuboid a single cube includes both the corners. Hence although there are 8 corners the question demands how many cubes would have 3 different colors and because a single cube covers 2 corners, the cubes which have 3 different sides is 4. However, if the height of the cuboid is increased, or the height of the cube is halved, then there would be 8 cubes with 3 different colors.
Viv said:
1 year ago
It always the question sound vague.
" having red, green and black colours on at least one side of the cube ".
~ so 16 seems like the answer as long as any cube any a coloured side, right?
If the answer is 4 the Q should be "having all the red, green and black colours on at least one side of the cube".
" having red, green and black colours on at least one side of the cube ".
~ so 16 seems like the answer as long as any cube any a coloured side, right?
If the answer is 4 the Q should be "having all the red, green and black colours on at least one side of the cube".
Gamer Dev said:
8 years ago
Well, as clearly seen in the above diagram.
There are only four cubes (corner cubes) that are painted with red, green and black colors.
All the remaining cubes are painted with only two colors.
There are only four cubes (corner cubes) that are painted with red, green and black colors.
All the remaining cubes are painted with only two colors.
(1)
Venkat Natesh said:
10 years ago
If all the three colours should be in a cube. We can have it only in corners.
Therefore 4 CORNERS in this diagram. So 4 cubes will get coloured in 3 different colours.
Therefore 4 CORNERS in this diagram. So 4 cubes will get coloured in 3 different colours.
Priyansh said:
5 years ago
The question is saying at least one side of the cube.
It means there will be 16 cubes having colors in at least one side, isn't.
It means there will be 16 cubes having colors in at least one side, isn't.
Chandan said:
7 years ago
Because dimensions in three different face or plane are different. That's why it is a Cuboid.
Sairarasheed said:
1 decade ago
How there is only 4 corners? In other cases having more than 1 cm height?
Mustaq said:
1 decade ago
Please tel me ans clearly I couldnt understand please please.
Aayush varshney said:
5 years ago
I couldn't understand how it done. Please explain me.
(8)
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