CAT 2020 Averages Question (Medium)

Question

In a group of 10 students, the mean of the lowest 9 scores is 42 while the mean of the highest 9 scores is 47. For the entire group of 10 students, the maximum possible mean exceeds the minimum possible mean by

Accepted Answer

! Scores of Ten Students https optima-learn.b-cdn.net quantPyqImages img_1751025913976_1.jpg Step 1 Define Variables Let the 10 scores in ascending order be . Let be the mean of the lowest 9 scores to . Let be the mean of the highest 9 scores to . Let be the mean of all 10 scores to . Step 2 Formula

CAT 2020

Quantitative

Averages

Medium

In a group of 10 students, the mean of the lowest 9 scores is 42 while the mean of the highest 9 scores is 47. For the entire group of 10 students, the maximum possible mean exceeds the minimum possible mean by

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