expert Set 48 Logic Puzzle

Expert Sequence Pattern #48

Title
Expert Sequence Pattern #48
SequenceType
seq-visual
DisplaySequence
  • 1 dot
  • 3 dots
  • _
  • _
  • _
  • 21 dots
  • 28 dots
  • 36 dots
  • _
  • 55 dots
FullSequence
  • 1 dot
  • 3 dots
  • 6 dots
  • 10 dots
  • 15 dots
  • 21 dots
  • 28 dots
  • 36 dots
  • 45 dots
  • 55 dots
BlankPositions
  • 2
  • 3
  • 4
  • 8
Answers
  • 6 dots
  • 10 dots
  • 15 dots
  • 45 dots
Rule
Triangular dot patterns
Question
Find the 4 missing terms in the sequence: 1 dot, 3 dots, _, _, _, 21 dots, 28 dots, 36 dots, _, 55 dots
SequenceLength
10
Hint
Count how many are added each time.