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The average height of 35 students in a class is 4'2". Three students of average height 4'10" moved to new section while 6 students of total height 33'4" joined the class. The average height of the students in the class is now—
  • a)
    4'6"
  • b)
    5'
  • c)
    4'4"
  • d)
    4'8"
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The average height of 35 students in a class is 42". Three studen...
The total height of 35 students in class
= 35 × 50 = 1750 inch (4'2" = 50")
After leaving 3 students of average height of 4'10" the total height of 32 students
= 1750 – (4'10" × 3)
= 1750 – 174
= 1576 inch
6 students of total height of 33'4"
= 400 inch joined the total height of students height of the class
Now, total height to be taken with upper line
32 + 6 = 38 students
            = 1576 + 400
            = 1976 inch
Average height of each student
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The average height of 35 students in a class is 42". Three students of average height 410" moved to new section while 6 students of total height 334" joined the class. The average height of the students in the class is now—a)46"b)5c)44"d)48"Correct answer is option 'C'. Can you explain this answer?
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The average height of 35 students in a class is 42". Three students of average height 410" moved to new section while 6 students of total height 334" joined the class. The average height of the students in the class is now—a)46"b)5c)44"d)48"Correct answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The average height of 35 students in a class is 42". Three students of average height 410" moved to new section while 6 students of total height 334" joined the class. The average height of the students in the class is now—a)46"b)5c)44"d)48"Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average height of 35 students in a class is 42". Three students of average height 410" moved to new section while 6 students of total height 334" joined the class. The average height of the students in the class is now—a)46"b)5c)44"d)48"Correct answer is option 'C'. Can you explain this answer?.
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