hard Set 49 Logic Puzzle

Hard Sequence Pattern #49

Title
Hard Sequence Pattern #49
SequenceType
seq-mixed
DisplaySequence
  • 9
  • _
  • 13
  • 16
  • _
  • 19
  • 21
  • _
  • 25
  • 25
FullSequence
  • 9
  • 13
  • 13
  • 16
  • 17
  • 19
  • 21
  • 22
  • 25
  • 25
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 13
  • 17
  • 22
Rule
Two interleaved arithmetic sequences
Question
Find the 3 missing terms in the sequence: 9, _, 13, 16, _, 19, 21, _, 25, 25
SequenceLength
10
Hint
Look at every other term separately.