Sequence Pattern Seq Mixed Hard — Set 17

Hard Sequence Pattern #17

Title

Hard Sequence Pattern #17

SequenceType

seq-mixed

DisplaySequence

• 4
• _
• 7
• 18
• _
• 21
• 13
• _
• 16
• 27

FullSequence

• 4
• 15
• 7
• 18
• 10
• 21
• 13
• 24
• 16
• 27

BlankPositions

• 1
• 4
• 7

Answers

• 15
• 10
• 24

Rule

Two interleaved arithmetic sequences

Question

Find the 3 missing terms in the sequence: 4, _, 7, 18, _, 21, 13, _, 16, 27

SequenceLength

10

Hint

Look at every other term separately.