Notes - Odd Test
Category : 12th Class
Introduction
This chapter is also known as classification which means to classify the group from give relationship. It is a process of grouping various objects on the basis of their common properties. It helps to make homogeneous.
In this type of questions some words are given in such a way that one does not belong to the group which the rest are members. The word which does not belong to that group is called an odd word. Candidates have to select this odd number / word. The different types of this test is given as below:
Example:
This type of questions are based on English alphabets which is classified in a group using particular rule / method. Out of four groups / numbers, three are alike in some manner and only one is different which is called odd. The odd alphabet order is your answer.
(a) DEF (b) GHI
(c) KLM (d) OPR
Ans. (d)
Explanation: \[D\,\,\to \,\,E\,\,\to \,\,F\]
\[G\,\,\to \,\,H\,\,\to \,\,I\]
\[K\,\,\to \,\,L\,\,\to \,\,M\]
\[O\,\,\xrightarrow{+1}\,\,P\,\,\xrightarrow{+2}R\]
Here option (a), (b) and (c) are arrangement in sequence but option (d) is no arranged in sequence. Hence the answer is (d).
(a) ACEH (b) LNPS
(c) PRTW (d) WYZA
Ans. (d)
Explanation:
\[A\xrightarrow{+2}C\xrightarrow{+2}E\xrightarrow{+3}H\]
\[L\xrightarrow{+2}N\xrightarrow{+2}P\xrightarrow{+3}S\]
\[P\xrightarrow{+2}R\xrightarrow{+2}T\xrightarrow{+3}W\]
\[W\xrightarrow{+1}Y\xrightarrow{+1}Z\xrightarrow{+1}A\]
Hence option (d) does not fit in the group.
(a) AEI (b) JNR
(c) SWX (d) BFJ
Ans. (c)
Explanation:
\[A\xrightarrow{+4}E\xrightarrow{+4}I\]
\[J\xrightarrow{+4}N\xrightarrow{+4}R\]
\[S\xrightarrow{+4}W\xrightarrow{+1}X\]
\[B\xrightarrow{+4}F\xrightarrow{+4}J\]
Therefore option (c) does not fit in the group
(a) DCBA (b) MNOP
(c) HGFE (d) LKJI
Ans. (b)
Explanation: Except in (b); in each group fourth letter is obtained by moving third letter one step backward, while in (b) fourth letter is obtained by moving the third letter one step forward. Hence the answer is (b).
(a) DEVW (b) GHST
(c) JKNO (d) CBED
Ans. (d)
Explanation:
\[D\xrightarrow{+1}E\,and\,V\xrightarrow{+1}W\]
\[G\xrightarrow{+1}H\,and\,S\xrightarrow{+1}T\]
\[J\xrightarrow{+1}K\,and\,N\xrightarrow{+1}O\]
But \[C\xrightarrow{-1}B\,and\,E\xrightarrow{-1}D\]
Snap Test
In this type of questions four alternative are given, of which three are similar to one another while the fourth one is different. So you are required to pick out the item which does not belong to the group, which is your answer.
Three of the following four are alike in a certain way and so form a group which one does not belong to that group?
(a) Jawaharlal Nehru (b) Rajiv Gandhi
(c) Indira Gandhi (d) Pranab Mukherjee
Ans. (d)
Explanation: All except option (d) were prime ministers but Pranab Mukherjee is president.
(a) Dog (b) Bark
(c) Cat (d) Rat
Ans. (b)
Explanation: Except (b) all are animals.
(a) Book (b) Pen
(c) Stationary (d) Copy
Ans. (c)
Explanation: All are the part of Stationary.
(a) Ear (b) Hands
(c) Fingers (d) Legs
Ans. (c)
Explanation: Except fingers, all other parts of the body are in pair. Hence option (c) is the correct answer.
(a) Branch (b) Leaf
(c) Root (d) Plant
Ans. (d)
Explanation: All items are the parts of a plant. Hence plant does not belong to the group. So, the answer is (d).
In this type of questions, the groups are based on numbers and different types of number. The numbers are arranged on certain rule / method. Out of the given numbers, one does not show similar property and that number is selected as your answer. Here mathematic symbols are also used.
(a) 36 (b) 64
(c) 108 (d) 54
Ans. (b)
Explanation: All the rest numbers are divisible by 9.
\[36=9\,\,\times \,\,4,\,\,64\,\,\ne \,\,9\,\times \,\,?,\,\,108\,\,=\,\,9\,\,\times \,\,12,\,\,54\,\,=\,\,9\,\,\times \,\,6\]
(a) 212 (b) 343
(c) 757 (d) 511
Ans. (d)
Explanation: In all the other numbers first and third digit are same
Find the odd man out from the alternative?
(a) 706 (b) 507
(c) 489 (d) 250
Ans. (c)
Explanation: In all the other numbers zero is used.
(a) 49 (b) 85
(c) 121 (d) 81
Ans. (b)
Explanation: All the rest numbers are perfect square
\[49\,\,=\,\,\,{{(7)}^{2}},\,\,85\,\,\ne \,\,2,\,\,121\,\,=\,\,{{(11)}^{2}},\,\,81\,\,=\,\,{{(9)}^{2}}\]
(a) 5 (b) 11
(c) 7 (d) 9
Ans. (d)
Explanation: All the rest numbers are prime numbers.
Direction question no (11 - 15): In this type of questions, some pair of words are given, out of which the words in all pairs except one bear certain relations. Therefore, candidates are required to decipher this relationship and choose the pair in which the words are differently related. Thus the odd one is your answer.
11.
(a) Tree : Plant (b) Wealth : Money
(c) Wish : Desire (d) Heavy : Light
Ans. (d)
Explanation: In all the other pairs, the first word is the synonym of the second word.
12.
(a) Black : White (b) Weapons : Arms
(c) In : Out (d) High : Low
Ans. (b)
Explanation: In all the other pairs, the first word is the opposite of the second word.
13.
(a) Head and Cap (b) Dhoti and Chest
(c) Hands and Gloves (d) Feet and Shoes
Ans. (b)
Explanation: In all the other pairs, the first word is worn on the second word.
14.
(a) Camel and Ass (b) Hen and Chicken
(c) Sheep and Lamb (d) Cow and Cats
Ans. (a)
Explanation: In all the other pairs, the second word is the baby of the first word.
15.
(a) Horse and Stable (b) Birds and Nest
(c) Dog and Den (d) Sheep and Pen
Ans. (c)
Explanation: In all the other pairs the first word resides in the second word.
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