hard Set 1 Logic Puzzle

Hard Sequence Pattern #1

Title
Hard Sequence Pattern #1
SequenceType
seq-mixed
DisplaySequence
  • 8
  • _
  • 10
  • 15
  • _
  • 17
  • 14
  • _
  • 16
  • 21
FullSequence
  • 8
  • 13
  • 10
  • 15
  • 12
  • 17
  • 14
  • 19
  • 16
  • 21
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 13
  • 12
  • 19
Rule
Two interleaved arithmetic sequences
Question
Find the 3 missing terms in the sequence: 8, _, 10, 15, _, 17, 14, _, 16, 21
SequenceLength
10
Hint
Look at every other term separately.