Arithmatical - Odd Man Out and Series

DIRECTIONS : Find the odd man out :
1. 74, 24, 82, 61, 10, 4
  A.  61
  B.  24
  C.  10
  D.  82
Solution
61 is ODD number.
Each of the numbers except 61 is an EVEN number.
2. 15, 35, 45, 24 ,55, 65, 95
  A.  15
  B.  24
  C.  55
  D.  95
Solution
24.
Each of the numbers except 24 , is a multiple of 5.
3. 1, 3, 7, 11, 15, 18, 21
  A.  3
  B.  7
  C.  18
  D.  21
Solution
18.
Each of the numbers except 18, is an odd number.
4. 4, 8, 12, 16, 20, 24, 27, 32
  A.  8
  B.  27
  C.  24
  D.  32
Solution
27.
Each of the number except 27 ,is an even number.
5. 31, 37, 41, 45, 55, 58, 61, 67
  A.  31
  B.  41
  C.  67
  D.  58
Solution
58.
Each of the numbers except 58, is a prime number.
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