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GATE 2020 CE (CE1) – Question 7

General Aptitude · Analytical Aptitude: Logical Reasoning and Deduction · 2 marks · Multiple choice

Five friends P, Q, R, S and T camped and had to sleep in a row inside a tent. P, Q and T refused to sleep next to R because he snored loudly. P and S wanted to avoid Q because he usually hugged people in sleep. If everyone was satisfied, in which order did they sleep?

  1. RSPTQ
  2. SPRTQ
  3. QRSPT
  4. QTSPR

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Show answer and explanation

Correct answer: (A) RSPTQ

Explanation

In RSPTQ,R is next only toS,which is permitted. Q is next only toT,also permitted. B placesP,T next toR,C placesQ next toR,andD placesP next toR. Therefore only **A** satisfies all restrictions.