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Zorluk: OrtaSeating Arrangement

Five scientific experts—a Biologist, a Chemist, an Economist, a Geologist, and a Physicist—are seated in a single row of five chairs facing North. Based on the following conditions, arrange the experts in the exact order they are seated from the extreme left end to the extreme right end:

1. The Chemist sits exactly in the middle seat.
2. The Economist sits immediately to the right of the Physicist.
3. The Biologist does not sit at either of the extreme ends of the row.
4. The Geologist sits somewhere to the left of the Chemist.

  1. 1Geologist
  2. 2Biologist
  3. 3Chemist
  4. 4Physicist
  5. 5Economist

Cevap

The correct sequence from left to right is: Geologist, Biologist, Chemist, Physicist, and Economist.
By following the clues step-by-step, the Chemist is fixed in the middle (Seat 3). The pair consisting of the Physicist and Economist must go to the right side (Seats 4 and 5) because the left side (Seats 1 and 2) must accommodate the Geologist. Between the two remaining left-side seats, the Biologist avoids the extreme end (Seat 1) and therefore takes Seat 2, placing the Geologist in Seat 1. The full left-to-right sequence is therefore: Geologist, Biologist, Chemist, Physicist, Economist.

Adım Adım Çözüm

1
Place the Chemist in the middle seat.
Seat 3 is occupied by the Chemist.
The first condition explicitly states the Chemist is exactly in the middle.
2
Identify the possible adjacent seats for the Physicist and Economist.
The Physicist and Economist must occupy either Seats 1 and 2, or Seats 4 and 5.
The Economist sits immediately to the right of the Physicist, requiring two adjacent empty seats.
3
Determine the position of the Geologist relative to the Chemist.
The Geologist must sit in Seat 1 or Seat 2.
The condition states the Geologist sits somewhere to the left of the Chemist (who is in Seat 3).
4
Finalize the placement of the Physicist and Economist.
The Physicist takes Seat 4 and the Economist takes Seat 5.
Since the Geologist requires a seat to the left of the Chemist, Seats 1 and 2 cannot be completely filled by the Physicist and Economist. Thus, they must take the empty adjacent pair on the right side.
5
Finalize the placement of the Geologist and Biologist in the remaining seats.
The Geologist takes Seat 1 and the Biologist takes Seat 2.
Seats 1 and 2 remain. The Biologist cannot sit at an extreme end (Seat 1 or 5). Therefore, the Biologist must take Seat 2, leaving the extreme left Seat 1 for the Geologist.

Anahtar Kavram

Linear Seating Arrangement with Positional Constraints
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Konular

Seating Arrangement

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