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Aptitude - Odd Man Out and Series

Exercise : Odd Man Out and Series - Odd Man Out
Directions to Solve
Find the odd man out.
11.
331, 482, 551, 263, 383, 362, 284
263
383
331
551
Answer: Option
Explanation:
In each number except 383, the product of first and third digits is the middle one.
12.
835, 734, 642, 751, 853, 981, 532
751
853
981
532
Answer: Option
Explanation:
In each number except 751, the difference of third and first digit is the middle one.
13.
41, 43, 47, 53, 61, 71, 73, 81
61
71
73
81
Answer: Option
Explanation:
Each of the numbers except 81 is a prime number.
14.
3, 5, 7, 12, 17, 19
19
17
5
12
Answer: Option
Explanation:
Each of the numbers is a prime number except 12.
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