2021 Quantitative Aptitude - Averages

There are two Classes A and B having 25 and 30 students respectively. In Class-A the highest score is 21 and lowest score is 17. In Class-B the highest score is 30 and lowest score is 22. Four students are shifted from Class-A to Class-B.Consider the following statements :1. The average score of Class-B will definitely decrease.2. The average score of Class-A will definitely increase.Which of the above statements is/are correct?

  • 1 only
  • 2 only
  • Both 1 and 2
  • Neither 1 nor 2

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    2021 UPSC Quantitative Aptitude PYQ | UPSC Insights | UPSC Insights