hard Set 82 Logic Puzzle

Hard Sequence Pattern #82

Title
Hard Sequence Pattern #82
SequenceType
seq-numbers
DisplaySequence
  • 12
  • _
  • 30
  • 39
  • _
  • 57
  • 66
  • _
  • 84
  • 93
FullSequence
  • 12
  • 21
  • 30
  • 39
  • 48
  • 57
  • 66
  • 75
  • 84
  • 93
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 21
  • 48
  • 75
Rule
Add 9 each time (start at 12)
Question
Find the 3 missing terms in the sequence: 12, _, 30, 39, _, 57, 66, _, 84, 93
SequenceLength
10
Hint
Look at the difference between each consecutive pair.