CAT Practice : Averages, Ratios, Mixtures

Averages

Averages

    Q.44: In olympics, a game has 2 groups A and B having participants from 20 and 25 countries respectively having an average score of 20 and 25 respectively. Also,
    A: Highest score: 25 Lowest score: 15
    B: Highest score: 32 Lowest score: 24
    What can be the minimum and maximum value of B’s average if 5 teams are transferred from A to B?

    1. 25 and 25
    2. 22.5 and 25
    3. 23.33 and 26
    4. 23.33 and 25

 

  • Correct Answer
    Choice D. 23.33 and 25

Detailed Solution

For minimum, teams with minimum score would be transferred from A to B
So, total score transferred = 15 x 5 = 75
B (Minimum Average) = = 23.33
For maximum, teams with maximum score would be transferred from A to B
So, total score transferred = 25 x 5 = 125
B (Maximum Average) = = 25







Correct Answer: 23.33 and 25



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