expert Set 84 Logic Puzzle

Expert Sequence Pattern #84

Title
Expert Sequence Pattern #84
SequenceType
seq-numbers
DisplaySequence
  • 1
  • -7
  • _
  • -23
  • -31
  • -39
  • _
  • _
  • _
  • -71
FullSequence
  • 1
  • -7
  • -15
  • -23
  • -31
  • -39
  • -47
  • -55
  • -63
  • -71
BlankPositions
  • 2
  • 6
  • 7
  • 8
Answers
  • -15
  • -47
  • -55
  • -63
Rule
Subtract 8 each time (start at 1)
Question
Find the 4 missing terms in the sequence: 1, -7, _, -23, -31, -39, _, _, _, -71
SequenceLength
10
Hint
Look at the difference between each consecutive pair.