Logical Reasoning Test - 7

The pattern followed here is:

According to the alphabetical positions of the letters,

1) ALMZ → A and Z are reverse letters; L + 1 = M

2) BTUY → B and Y are reverse letters; T + 1 = U 

3) CPQX → C and X are reverse letters; P + 1 = Q

4) DEFY → D and Y are not reverse letters; E + 1 = F

Hence, ‘DEFY’ is the odd one out.

The logic followed is:

All the given option except option (4), is an example of S.I units whereas dyne is a derived unit of force specified in the centimetre–gram–second system of units. 

Option 1: Ampere

It is a S.I unit.

Option 2: Kelvin

It is a S.I unit.

Option 3: Candela

It is a S.I unit.

Option 4: Dyne

It is a not a S.I unit. It is a derived unit of force specified in the centimetre–gram–second system of units. 

Hence, the correct answer is "Dyne".

Key Points

• CGS System
  • In this system, the units of length, mass, and time are centimetre, gram, and second respectively.
  • It is also called Gaussian System.
  • Force is that which changes or tends to change the state of the rest of a body.
  • A push or a pull acting on an object is called a force.
  • Force is measured in the SI unit of newtons and represented by the symbol F.
  • Dyne is the unit of force in the CGS system.
  • 1 Newton = 10⁵ Dynes.
  • The name dyne was first proposed as a CGS unit of force in 1873.
  • Force is a vector quantity.
  • Force = Mass × Acceleration
  • The strength of a force is usually expressed by its magnitude.
  • A force applied to an object may change its speed.

Additional Information

* S.I Unit of Resistance is the Ohm.

* S.I Unit of Energy is Joule.

* S.I Unit of Volume is the Cubic meter.

* S.I Unit of Force is Newton.

* S.I Unit of Area is the Square meter.

* S.I Unit of Temperature is Kelvin.

Important Points

• There is a total of 9 S.I units.

1. 7 of them are fundamental units.
2. 2 of them are Supplementary units.

The logic is -

Hence, 'MJB' is the correct answer.

The logic followed is:

In all the options except (option D), all the faces open in the same direction, and the next figure can be obtained by 90º clockwise rotation.

Option 1:

Both the shapes are in the same direction.

90º clockwise rotation will give the next figure.

Option 2:

Both the shapes are in the same direction.

90º clockwise rotation will give the next figure.

Option 3:

Both the shapes are in the same direction.

Both the shapes are in the same direction.

90º clockwise rotation will not give the next figure. 

Option 4:

Both the shapes are opposite to each other.

Thus figure D is not following the pattern. 

Hence, the correct answer is "Option 4".

The logic is here is:

1^st number × (1^st number  + 1) = 2^nd number.

Option (1): 9 : 90

Now, follow the logic:

9 × (9 + 1) = 9 × 10 = 90 = 2^nd number

This option follows the pattern.

Option (2): 7 : 56

7 × (7 + 1) = 7 × 8 = 56 = 2^nd number

This option follows the pattern.

Option (3): 5 : 30

5 × (5 + 1) = 5 × 6 = 30 = 2^nd number

This option follows the pattern.

Option (4): 8 : 66

Now, follow the logic:

8 × (8 + 1) = 8 × 9 = 72 ≠ 2^nd number

This option do not follow the pattern.

Hence, pair “8 : 66” is an odd one.

Alternate MethodThe logic followed here is:

Square of 1st number + 1st number = second number

Option 1 → 9 : 90 → 9² + 9 = 90

Option 2 → 7 : 56 → 7² + 7 = 56

Option 3 → 5 : 30 → 5² + 5 = 30

Option 4 → 8 : 66 → 8² + 8 = 72 ≠ 66

Hence, the correct answer is "Option 4".

The logic followed is:

The given shape is rotating by +90º Anticlockwise except for figure D which is not following the pattern.

The correct pattern is:

Thus the Option D is odd from the rest of the image.

Hence, the correct answer is "Option D".

The logic followed here is:

• Second number - 2 = First number

1. 15 - 12 = 3
2. 19 - 17 = 2
3. 11 - 13 = 2
4. 23 - 21 = 2

• In options 2, 3, and 4, the difference is 2 but in option 1 the difference is 3 which is different from others.

Hence, "option 1" is the correct answer.

Logic:

Veena, Sitar and Guitar are String Instruments.

Whereas,

Drum is not a String Instrument.

Hence, drum is the odd one out.

Logic: Bottom figure is water image of the upper image.

Figure A: Water image of N

Figure B: Water Image of B

Figure C: Water image of Y

But in Figure: 

Figure D: Water image of M

Hence, option (4) is the correct answer.

The relation is:

1) Light: Dark → Antonyms

2) Up: Down → Antonyms

3) Small: Little → Synonyms

4) Random: Specific → Antonyms

All pairs are antonyms of each other except the pair ‘Small: Little’, which are synonyms of each other.

Hence, ‘Small: Little’ is the odd one out.