**Logical reasoning** tests (also known as critical **reasoning** tests) are designed to assess a candidate’s ability at skills such as how to interpret patterns, number sequences or the relationships between shapes. This is considered as the major parameter in clearing the interview.

**Xplore IT Corp, The best training institute in coimbatore rigorously trains candidates on logical reasoning in order to boost up their thinking ability.**

**Though we are considered as the best java training,Php training,Embedded training,vlsi training, Android training centre we focus on logical thinking too.**

**Below are a few questions where you can try and solve by yourselves. Answers are also mentioned but we recommend that you try it by yourself and clock the right answers**

- How many points will be on the face opposite to in face which contains 2 points?

- 1
- 5
- 4
- 6

- From the four positions of a dice given below, find the color which is opposite to yellow?

- Violet
- Red
- Rose
- Blue

- Two positions of a dice are shown below. Which number will appear on the face opposite to the face

with the number 5? - 2/6
- 2
- 6
- 4

Directions for questions 4 to 6: Six dice with upper faces erased are as shows.

The sum of the numbers of dots on the opposite face is 7.

- If even numbered dice have even number of dots on their top faces, then what would be the total

number of dots on the top faces of their dice? - 12
- 14
- 18
- 24
- If the odd numbered dice have even number of dots on their top faces, then what would be the total

number of dots on the top faces of their dice? - 8
- 10
- 12
- 14

- If dice (I), (II) and (III) have even number of dots on their bottom faces and the dice (IV), (V) and

(VI) have odd number of dots on their top faces, then what would be the difference in the total

number of top faces between there two sets? - 0
- 2
- 4
- 6

Directions for questions 7 to 10: The following questions are based on the information given below:

- There is a cuboid whose dimensions are 4 x 3 x 3 cm.
- The opposite faces of dimensions 4 x 3 are coloured yellow.
- The opposite faces of other dimensions 4 x 3 are coloured red.
- The opposite faces of dimensions 3 x 3 are coloured green.
- Now the cuboid is cut into small cubes of side 1 cm.

- How many small cubes will have only two faces coloured?
- 12
- 24
- 16
- 14

- How many small cubes have three faces coloured ?
- 24
- 20
- 16
- 8

- How many small cubes will have no face coloured?
- 1
- 2
- 4
- 8

- How many small cubes will have only one face coloured?
- 10
- 12
- 14
- 18

**Answer & Explanations**

- Option (d). Exp: In first two positions of dice one common face containing 5 is same. Therefore

according to rule no. (3) the face opposite to the face which contains 2 point, will contains 6 points. - Option (a). Exp: The colours adjacent to yellow are orange, blue, red and rose. Hence violet will be

opposite to yellow. - Option (c). Exp: According to the rule no. (3), common faces with number 3, are in same positions.

Hence the number of the opposite face to face with number 5 will be 6. - Option (c). Exp: Even numbered dice are: (II), (IV) and (VI)

No. of dots on the top face of (II) dice = 6

No. of dots on the top face of (IV) dice = 6

and No. of dots on the top face of (VI) dice = 6

Therefore Required total = 6 + 6 + 6 = 18

- Option (a). Exp: Odd numbered dice are : (II), (III) and (V)

No. of dots on the top faces of these dice are 2, 2 and 4 respectively.

Required total = 2 + 2 + 4 = 8

- Option(d). Exp: No. of faces on the top faces of the dice (I), (II) and (III) are 5, 1 and 5 respectively.

Therefore, Total of these numbers = 5 + 1 + 5 = 11

No. of dots on the top faces of the dice (IV), (V) and (VI) are 1, 3 and 1 respectively.

Therefore, Total of these numbers = 1 + 3 + 1 = 5

Required difference = 11 – 5 = 6.

- Option (c). Exp:

Number of small cubes having only two faces coloured = 6 from the front + 6 from the back + 2 from

the left + 2 from the right = 16.

- Optin (d). Exp:

Such cubes are related to the corners of the cuboid and there are 8 corners.

Hence, the required number is 8.

- Option (b). Exp:

Number of small cubes have no face coloured = (4 – 2) x (3 – 2) = 2 x 1 = 2.

- Option (a). Exp:

Number of small cubes having only one face coloured = 2 x 2 + 2 x 2 + 2 x 1

= 4 + 4 + 2

= 10

**Cubes and Dices Aptitude basics, practice questions, answers and explanations **

**Prepare for companies tests and interviews**

**Cubes and cuboid:**

In a cube or a cuboid there are six surfaces, 8 corners and 12 edges in each.

In a cube length, breadth and height are same while in cuboid these are different.

In a cube the number of unit cubes = (side) 3 .

In cuboid the number of unit cube = (l x b x h).

If a cube is painted its surfaces with a same/ different color

n = (side of big cube/ side of small cube)

the No. of pieces of smaller cubes with 3 surfaces painted = number of corners = 8

the No. of pieces of smaller cubes with two surfaces painted = (n – 2) * number of edges = ( n – 2 ) * 12

the No. of pieces of smaller cubes with one surface painted = (n- 2)^{2} * number of surfaces = ( n- 2)^{2} * 6

No. of pieces of smaller cubes with no surface painted = ( n – 2 ) ^{3}

**Generally paintings of the big cube can be classified as :**

All the surfaces of the cube with the same colour.

All surfaces of the cube with different colours .

Two pairs of opposite surfaces of the cube are painted.

Only one pair of opposite surfaces of the cube are painted.

Two pairs of adjacent surfaces of the cube are painted.

One pair of adjacent surfaces of the cube are painted.

**Dices :**

Dices are three dimensional figures, which can be either cubes or cuboids.

There are 6 faces in the cube – ABCG, GCDE, DEFH, BCDH, AGEF and ABHF. Always four faces are adjacent to one face. Opposite of ABCG is DEFH and so on.CDEG is the upper face of the cube and ABHF is the bottom of the cube. The labeling of the six faces of the dice can be done as follows:

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