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Three classes X, Y and Z take an algebra test.
The average score in class X is 83.
The average score in class Y is 76.
The average score in class Z is 85.
The average score of all students in classes X and Y together is 79.
The average score of all students in classes Y and Z together is 81.
What is the average for all the three classes?
The average score in class X is 83.
The average score in class Y is 76.
The average score in class Z is 85.
The average score of all students in classes X and Y together is 79.
The average score of all students in classes Y and Z together is 81.
What is the average for all the three classes?
- a)82
- b)81
- c)81.5
- d)84.5
Correct answer is option 'C'. Can you explain this answer?
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Three classes X, Y and Z take an algebra test.The average score in cla...
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Three classes X, Y and Z take an algebra test.The average score in cla...
For a second, let us assume the distance is 'x'
So total distance will be '2x'
According to the formula
Avg Speed = Total distance/total time
time for 84km/hr speed = x/84
time for 56km/hr speed = x/56
On solving, you will get 2/5*168 = 67.2
Thanks and Regards
Aviral Srivastava
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Three classes X, Y and Z take an algebra test.The average score in cla...
Distance from A to B=d1 distance from B to A=d2 time from A to B = t1 time from B to A =t2 speed from A to B=s1 speed from B to A=s2 t1=d1/s1=778/84=9.26 or 9hrs t2=d2/s2=778/56=13.89 or 14hrs average of t1 and t2=(9+14)/2=23/2=11.5 now average speed=778/11.5=67.6 nearest one in answer C 67.2
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Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer?
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Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer?.
Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer?.
Solutions for Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
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Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Three classes X, Y and Z take an algebra test.The average score in class X is 83.The average score in class Y is 76.The average score in class Z is 85.The average score of all students in classes X and Y together is 79.The average score of all students in classes Y and Z together is 81.What is the average for all the three classes?a)82b)81c)81.5d)84.5Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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