hard Set 90 Logic Puzzle

Hard Sequence Pattern #90

Title
Hard Sequence Pattern #90
SequenceType
seq-numbers
DisplaySequence
  • 7
  • _
  • 23
  • 31
  • _
  • 47
  • 55
  • _
  • 71
  • 79
FullSequence
  • 7
  • 15
  • 23
  • 31
  • 39
  • 47
  • 55
  • 63
  • 71
  • 79
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 15
  • 39
  • 63
Rule
Add 8 each time (start at 7)
Question
Find the 3 missing terms in the sequence: 7, _, 23, 31, _, 47, 55, _, 71, 79
SequenceLength
10
Hint
Look at the difference between each consecutive pair.