hard Set 81 Logic Puzzle

Hard Sequence Pattern #81

Title
Hard Sequence Pattern #81
SequenceType
seq-mixed
DisplaySequence
  • 5
  • _
  • 9
  • 17
  • _
  • 20
  • 17
  • _
  • 21
  • 26
FullSequence
  • 5
  • 14
  • 9
  • 17
  • 13
  • 20
  • 17
  • 23
  • 21
  • 26
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 14
  • 13
  • 23
Rule
Two interleaved arithmetic sequences
Question
Find the 3 missing terms in the sequence: 5, _, 9, 17, _, 20, 17, _, 21, 26
SequenceLength
10
Hint
Look at every other term separately.