medium Set 85 Logic Puzzle

Medium Sequence Pattern #85

Title
Medium Sequence Pattern #85
SequenceType
seq-triangle-nums
DisplaySequence
  • 1
  • 3
  • 6
  • _
  • _
  • 21
  • 28
  • 36
FullSequence
  • 1
  • 3
  • 6
  • 10
  • 15
  • 21
  • 28
  • 36
BlankPositions
  • 3
  • 4
Answers
  • 10
  • 15
Rule
Triangular numbers: 1, 3, 6, 10, 15 …
Question
Find the 2 missing terms in the sequence: 1, 3, 6, _, _, 21, 28, 36
SequenceLength
8
Hint
Add 1 more than you added before each time.