expert Set 86 Logic Puzzle

Expert Sequence Pattern #86

Title
Expert Sequence Pattern #86
SequenceType
seq-numbers
DisplaySequence
  • 13
  • 15
  • _
  • _
  • _
  • 23
  • _
  • 27
  • 29
  • 31
FullSequence
  • 13
  • 15
  • 17
  • 19
  • 21
  • 23
  • 25
  • 27
  • 29
  • 31
BlankPositions
  • 2
  • 3
  • 4
  • 6
Answers
  • 17
  • 19
  • 21
  • 25
Rule
Add 2 each time (start at 13)
Question
Find the 4 missing terms in the sequence: 13, 15, _, _, _, 23, _, 27, 29, 31
SequenceLength
10
Hint
Look at the difference between each consecutive pair.