Sequence Pattern Seq Numbers Hard — Set 17

Hard Sequence Pattern #17

Title

Hard Sequence Pattern #17

SequenceType

seq-numbers

DisplaySequence

• 5
• _
• 1
• -1
• _
• -5
• -7
• _
• -11
• -13

FullSequence

• 5
• 3
• 1
• -1
• -3
• -5
• -7
• -9
• -11
• -13

BlankPositions

• 1
• 4
• 7

Answers

• 3
• -3
• -9

Rule

Subtract 2 each time (start at 5)

Question

Find the 3 missing terms in the sequence: 5, _, 1, -1, _, -5, -7, _, -11, -13

SequenceLength

10

Hint

Look at the difference between each consecutive pair.