• Numerical Ability - Number Series
Question

2  ,3,  12,  37,  86,  166,  288

  • A) 37
  • B) 86
  • C) 166
  • D) 288
  • E) 12
Solution

Answer: (C)

Explanation:

3-2=1

12-3=9

37-12=25

86-37=49

166-86=80(this must be 81=167-86=81)

so wrong number in the sequence is 166

difference between two sucessive numbers sequence would be

1,9,25,49,81,121(square of 1,3,5,7,9,11).

Answer: (C)

Explanation:

3-2=1

12-3=9

37-12=25

86-37=49

166-86=80(this must be 81=167-86=81)

so wrong number in the sequence is 166

difference between two sucessive numbers sequence would be

1,9,25,49,81,121(square of 1,3,5,7,9,11).
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