What the sleeping brain does — Aptitude Question
What the sleeping brain does: For most of the twentieth century, sleep was treated as an absence: the hours in… Answer and worked solution on CodeKairo.
- Topic: Reading Comprehension
- Section: Verbal Ability
- Difficulty: Easy
- Time target: 75 seconds
Question
For most of the twentieth century, sleep was treated as an absence: the hours in which nothing happened. That view has been overturned. The sleeping brain consolidates the day's learning, clears metabolic waste and rehearses motor sequences. What looks like inactivity is in fact a second shift. The practical consequence is uncomfortable for a culture that prizes long hours — cutting sleep to gain working time is a trade that reliably loses more than it gains.
Which of the following is not listed in the passage as something the sleeping brain does?
Options
- Consolidates learning
- Clears metabolic waste
- Rehearses motor sequences
- Repairs damaged muscle tissue
Show the answer and the worked solution
Correct answer: D. Repairs damaged muscle tissue
Worked solution
- The passage lists consolidating learning, clearing metabolic waste and rehearsing motor sequences.
- Repairing damaged muscle tissue is not mentioned, however plausible it sounds.
Answer: Repairs damaged muscle tissue.
The idea
For 'which is not mentioned' questions, tick off each option against the text. Plausibility is irrelevant — only what appears on the page counts.
Shortcut. The passage's list has three items, and three options repeat its verbs word for word (consolidates, clears, rehearses); the option with no matching verb is the answer.
Common trap. "Rehearses motor sequences" — it sounds the most technical and least likely brain task, so a reader going on plausibility may pick it, yet it is quoted directly from the passage.