Oddman out/ Classification Test Questions for Bank,IBPS,SBI,SSC,UPSC,RRB,NTPC exams
In this type of questions ,word, alphabets ,objects and figures are purely based on similarity or similar relationship, while one does not follow the pattern/rule or does not belong to the group, so seems to be different from the rest, hence that to be picked out ie., the 'oddman out' condition.
Classification may be categorized in two types.
- Semantic Classification
- Symbolic/number classification
Semantic classification
In such type of questions, a group of four/five words is given,except one, all other bear a common relationship. .Candidates are required to slect that word as option which does not belong to a common group.Example:
1. a)Ear b)Eye c)Nose d) Throat
Answer: d) Except throat all other organs are sense organs.
Symbolic /Number Classification'
In such type of questions, a group of letters and numbers is given. On behalf of alphabetical values and their positions letter form a group same as number follow mathematical operations/rules, hence form a group .Candidates are required to select the option which does not belong to that same group.Examples:
1. a)AC b)QT c)IK d)LN
Answer: b ,
2. a)73 b)53 c)87 d)67
Answer:c. Except '87' all are prime number while 87 is divisible by 3
Oddman out Practice Questions and Answers
1. 835, 734, 642, 751, 853, 981, 532
a).751
b).853
c).981
d).532
Answer: Option a.
In each number except 751, the difference of third and first digit is the middle one.
2. 331, 482, 551, 263, 383, 362, 284
a).263
b).383
c).331
d).551
Answer: Option b
In each number except 383, the product of first and third digits is the middle one.
3. 5,8,13, 21, 34, 45, 89
a).21
b).34
c).45
d).83
Answer: Option c
13= 8+5 , 21= 8+13 , 34= 21+13
So, the number 45 is wrong and must be replaced by 55
55= 34+21
4. 2, 6, 12, 20, 30, 42, 56, 76
a) 61
b) 64
c) 76
d) 70
Answer c.
The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.
So, the right number is 8 x 9 = 72.
5.
a) Lead
b) Mercury
c) Copper
d) Iron
Answer: b .
All except mercury are solid.
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