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CAT 1997 — QA Question 4

Weighted AverageEasy
Passage / Data

Answer the next 3 questions based on the following information.

There are 60 students in a class. These students are divided into three groups A, B and C of 15, 20 and 25 students each. The groups A and C are combined to form group D.

What is the average weight of the students in group D?

Answer & solution

  • A

    More than the average weight of A

  • B

    More than the average weight of C

  • C

    Less than the average weight of C

  • Cannot be determined

Solution

Although the number of students in group D is more than in any other group, we still cannot say anything about the average weight of this group as nothing is mentioned about the average weights of any of the groups or of the individual students.

CAT 1997 QA Q4: What is the average weight of the students in group D? — Solution | TheCATExam