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Read the following and answer the question that follow.
If 5 people are transferred from E to R and another independent set of 5 people are transferred back from R to E, then after this operation (Assume that the set transferred from R to E contains none from the set of students that came to R from E)
Q. What can be said about E’s average?
  • a)
    Will decrease
  • b)
    Will always increase if R’s average changes
  • c)
    May increase or decrease
  • d)
    Will increase only if R’s average decreases
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Read the following and answer the question that follow.If 5 people a...
Since the lowest score in Class R is 23 which is more than the highest score of any student in Class E. Hence, E’s average will always increase.
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Most Upvoted Answer
Read the following and answer the question that follow.If 5 people a...

Explanation:

Initial Situation:

- Let's assume the initial average of E and R are denoted by AE and AR respectively.
- When 5 people are transferred from E to R, the number of people in E decreases by 5 and the number of people in R increases by 5.

Effect on Average:

- When people are transferred from E to R, the average of E will decrease because the total number of people in E decreases while the total number of people in R increases.

- However, when another set of 5 people are transferred back from R to E, the average of E will increase. This is because the total number of people in E increases again, leading to an increase in the average of E.

- The key point to note here is that the set of people transferred from R to E does not contain anyone from the original set of people transferred from E to R.

- Therefore, the average of E will always increase if people are transferred back from R to E, regardless of whether the average of R changes.

Conclusion:

- In conclusion, E's average will always increase if people are transferred back from R to E, as the total number of people in E will increase, leading to a higher average.
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Read the following and answer the question that follow.If 5 people are transferred from E to R and another independent set of 5 people are transferred back from R to E, then after this operation (Assume that the set transferred from R to E contains none from the set of students that came to R from E)Q. What can be said about E’s average?a) Will decreaseb) Will always increase if R’s average changesc) May increase or decreased) Will increase only if R’s average decreasesCorrect answer is option 'B'. Can you explain this answer?
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