Question

The second group of trainee astronauts are all sitting around the table, waiting to start their first day of training.

Answer 1

Answer:

• Seat 1: Peter
• Seat 2: Lia
• Seat 3: Kenny
• Seat 4: Jennie
• Seat 5: Harvey
• Seat 6: Joyce
• Seat 7: Rick
• Seat 8: Mark

Step-by-step explanation:

From Rule 6: Jennie is at Seat 4 and next to Harvey; and by rule 1 (Harvey has a higher seat number than Jennie)

• Seat 4: Jennie
• Seat 5: Harvey

From Rule 2:  Peter is across from Harvey.

Since Seat 5 is across from Seat 1

• Seat 1: Peter

From Rule 7: Peter is next to Lia.

Therefore, Lia can either be in Seat 2 or Seat 8, but by Rule 3 (Neither Joyce nor Lia is in seat 8), therefore, Lia is in Seat 2.

• Seat 2: Lia

By Rule 5: Lia is next to Kenny, therefore:

• Seat 3: Kenny

From Rule 4: Rick is across from Kenny, and Rick is also next to Joyce.

Seat 7 is across from Seat 3, therefore:

• Seat 7: Rick

Since Rick is also next to Joyce (and by Rule 3, Joyce cannot be on Seat 8)

• Seat 6: Joyce

Therefore, we have:

Seat 1: Peter

Seat 2: Lia

Seat 3: Kenny

Seat 4: Jennie

Seat 5: Harvey

Seat 6: Joyce

Seat 7: Rick

Since Mark has the remaining seat, Mark is on Seat 8.