(i) Finding the Odd-Word: In such questions, four ‘meaningful’ words are given. These words can be found in the dictionary. Apart from that, these have a similar feature, based on that we’re supposed to find the odd-word. All except Eagle are flightless birds.
Solution: Here, we can see that all except Morbid are synonymous to each other as they all mean ‘falsehood’ while ‘morbid’ means ‘diseased’. So, here we should have a good vocabulary to solve such questions.
Solution: Here, Joy, Anxiety and Anger are all the type of Feeling. And, Feeling is a generic(or general) term. To solve this, we need a good knowledge of adjectives.
All except Eagle are flightless birds.
Example 3: All except Chicken can live in water.
Solution: Here, All except Appendix are bones. While Appendix is an organ made of muscle. To solve this, we need a basic knowledge of science.
(ii) Finding the Odd-Pair of Words: In such questions, four options are given. Each option has a pair of words (that can be found in the dictionary & hence meaningful). Each three pair depicts a relationship among each other and this relationship is common in all the four pairs but can’t be found in 4th odd-one pair. We’re supposed to find that odd-pair which doesn’t possess that common relationship.
a) Lion: Roar
b) Snake: Hiss
c) Frog: Bleat
d) Bees: hum
Solution: In all the pairs, the second word is the sound made by the animal, which is also the first word. But in the pair of frog: bleat, bleat is the sound made by sheep not frogs.
a) Protein: Marasmus
b) Sodium: Rickets
c) Iodine: Goitre
d) Iron: Anemia
Solution: In all the pairs, the second word describes the diseases, caused by a deficiency of element, which is the first word. But in the pair of Sodium: Rickets, Rickets is being caused by the deficiency of Vitamin D, not Sodium.
All except Chicken can live in water.
Example 3: All others are preliminary stages of an experiment. All others are synonyms except transparent.
a) Valley: Depth
b) Good: bad
c) High: Low
d) Black: white
Solution: Here, all the pairs contain the words which are antonym, i.e. they mean the opposite of each other. But, Valley & Depth are synonyms to each other.
(iii) Finding the Odd Number: In such questions, four numbers are given. Each of the 3 numbers has common features like prime numbers or odd numbers or all divisible by ‘7’ while the 4th number isn’t so we have to identify that odd-number that doesn’t have the feature the other four numbers have.
Solution: Here, all the numbers except 399 are of the form (Square + 1) like 257 ⇒ 256 + 1. But, 399 ⇒ 398 + 1 ⇒ 398 isn’t the square of any number.
Solution: Here, in all the options the pattern depicted is like this: Like in 3759 ⇒ (7+9) = 2×(3+5) ⇒ 16 = 2 × 8. But, 2936 isn’t following this pattern: (2+6) ≠ 2×(2+3).
Solution: Here, ‘4232’ is the only number where digits have been repeated while all other options have three different unique digits.
(iv) Finding the Odd-Pair of Numbers: In such questions, four options are given. Each option has a pair of numbers. Each four pair depicts a relationship among each other and this relationship is common in all the three pairs but can’t be found in 4th odd-one pair. We’re supposed to find that odd-pair which doesn’t possess that common relationship.
a) 140 - 45
b) 110 – 35
c) 100 – 30
d) 80 – 25
Solution: The pattern seen here is (first number – 5) ÷3= Second number. like 140 – 45 ⇒ (140 – 5) ÷ 3 = 45. But, 100 – 30 ⇒ (100 – 5) ÷ 3 ≠ 30
a) 7: 26
b) 8: 30
c) 10: 35
d) 13: 44
Solution: Here, the pattern is: 2nd number = (1st number × 3) + 5
Like in 7: 26 ⇒ 26 = 7 × 3 + 5 = 26 but in case 8: 30 ⇒ 30 ≠ 8×3 + 5
a) 21 - 49
b) 24 - 64
c) 25 - 54
d) 81 - 36
Solution: 21 & 49 have 7 as common factor, 24 & 64 have 8 as common factor. 81 & 36 have 9 as a common factor while 25 & 54 have no common factor.
(v) Finding the Odd Letters: In such types of questions, four options contain a random group of letters. These random groups of letters have common pattern and this pattern is common in all the three options but can’t be found in 4th odd-one. We’re supposed to find that odd-one which doesn’t possess that common pattern.
Solution: All except JFHG contain consecutive alphabets in random order.
Solution: In all the groups except CEUS, 1st and 3rd letters occupy the same position from the beginning & end of alphabetical series respectively.
All others are preliminary stages of an experiment.
All others are synonyms except transparent.