Odd One Out All Reasoning Aptitude

The answer is A. MNOQ.

In all the other letter-clusters, the letters are in alphabetical order, with a gap of two letters between each letter. For example, in QSUW, Q is followed by S, which is two letters after Q in the alphabet. Similarly, S is followed by U, which is two letters after S in the alphabet, and so on.

However, in MNOQ, the letters are not in alphabetical order. M is followed by N, which is one letter after M in the alphabet, but N is followed by O, which is three letters after N in the alphabet. Therefore, MNOQ is the odd one out.

The answer is C. 30:40.

In all the other number pairs, the second number is obtained by adding the first number to the square of the first number's tens digit. For example, in 20:30, 30 is obtained by adding 20 to the square of 2, which is 4. Similarly, in 42:56, 56 is obtained by adding 42 to the square of 4, which is 16.

However, in 30:40, 40 is not obtained by adding 30 to the square of 3, which is 9. Instead, 40 is obtained by adding 30 to 10. Therefore, 30:40 is the odd one out.

The answer is B. 60.

All the other numbers are multiples of 13:

• 130 = 10 * 13
• 52 = 4 * 13
• 78 = 6 * 13

However, 60 is not a multiple of 13. It is divisible by 2, 3, 4, 5, 6, 10, 12, 15, 20, and 30, but not by 13. Therefore, 60 is the odd one out.

The correct answer is A. 8 : 20. Here's why:

Option C: 18 : 81 = (18/2)² = 9² = 81

Option B: 10: 25 = (10/2)² = 5² = 25

Option D: 12: 36 = (12/2)² = 6² = 36

These pairs follow a pattern where the second number is the square of half of the first number.

Option A: 8 : 20 does not follow this pattern. (8/2)² = 4² = 16, not 20.

Therefore, the odd one out of the given options is A. 8 : 20.

The answer is C. Moon.

Mercury, Mars, and Venus are planets in our solar system, while the Moon is a natural satellite of Earth. Therefore, the Moon is the odd one out.

The answer is A. Climb.

Staircase, Escalator, and Ladder are all physical structures that are used to ascend or descend between different levels. Climb, on the other hand, is an action or a verb that describes the movement of going up or down something. Therefore, Climb is the odd one out.

The answer is C. 27.

25, 33, and 15 are all odd numbers, while 27 is an even number. Therefore, 27 is the odd one out.

The answer is B. 571.

In all the other numbers, the sum of the first two digits is equal to the third digit. For example, in 396, 3 + 9 = 12, and the third digit is 6. Similarly, in 451, 4 + 5 = 9, and the third digit is 1.

However, in 571, 5 + 7 = 12, and the third digit is 1. Therefore, 571 is the odd one out.

The answer is C. 12 : 4.

In all the other number pairs, the two numbers are co-prime, meaning that they have no common factors other than 1. For example, 21 and 2 have no common factors other than 1, and 14 and 3 have no common factors other than 1.

However, 12 and 4 have a common factor of 4. Therefore, 12 : 4 is the odd one out.

The answer is B. 34. All the other numbers are perfect cubes, meaning that they are the cube of an integer.

• 8 = 2³
• 64 = 4³
• 16 = 2⁴ However, 34 is not a perfect cube. It is not the cube of any integer. Therefore, 34 is the odd one out.