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On combining two groups of students having 30 and 40 marks respectily in an exam the resultant group has an average score of 34 . find the ratio of the number of students in the first group to the number of students in thr second group?
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On combining two groups of students having 30 and 40 marks respectily...
Given Information
- Group 1: 30 students with an average score of 30
- Group 2: 40 students with an average score of 40
- Combined group: Average score of 34

Approach
1. Let the number of students in Group 1 be x and in Group 2 be y
2. Use the average formula: (Total sum of scores)/(Total number of students) = Average score

Calculations
- Total sum of scores in Group 1 = 30x
- Total sum of scores in Group 2 = 40y
- Total sum of scores in the combined group = 34(x + y)
From the given information, we have:
- (30x + 40y)/(x + y) = 34
Solving this equation will give us the ratio of the number of students in Group 1 to the number of students in Group 2.
Community Answer
On combining two groups of students having 30 and 40 marks respectily...
(A) 2:3 (B) 3:5 (C) 5:3(D) 3:2
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On combining two groups of students having 30 and 40 marks respectily in an exam the resultant group has an average score of 34 . find the ratio of the number of students in the first group to the number of students in thr second group?
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On combining two groups of students having 30 and 40 marks respectily in an exam the resultant group has an average score of 34 . find the ratio of the number of students in the first group to the number of students in thr second group? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about On combining two groups of students having 30 and 40 marks respectily in an exam the resultant group has an average score of 34 . find the ratio of the number of students in the first group to the number of students in thr second group? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for On combining two groups of students having 30 and 40 marks respectily in an exam the resultant group has an average score of 34 . find the ratio of the number of students in the first group to the number of students in thr second group?.
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