hard Set 30 Logic Puzzle

Hard Sequence Pattern #30

Title
Hard Sequence Pattern #30
SequenceType
seq-matrix
DisplaySequence
  • 7
  • _
  • 11
  • 13
  • _
  • 17
  • 19
  • _
  • 23
  • 25
FullSequence
  • 7
  • 9
  • 11
  • 13
  • 15
  • 17
  • 19
  • 21
  • 23
  • 25
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 9
  • 15
  • 21
Rule
Each term = 2n + 5
Question
Find the 3 missing terms in the sequence: 7, _, 11, 13, _, 17, 19, _, 23, 25
SequenceLength
10
Hint
Find the linear formula: multiply position by a constant and add another.