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In a class, 60% of the students are boys and in an examination, 80% of the girls scored more than 40 marks(Maximum Marks:150). If 60% of the total students scored more than 40 marks in the same exam, what is the fraction of the boys who scored 40 marks or less.
  • a)
    8/15
  • b)
    7/15
  • c)
    4/5
  • d)
    1/5
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In a class, 60% of the students are boys and in an examination, 80% of...
Assume Total no of students = 100
60% of the students are boys. so Boys=60,Girls=40
No. of girls who scored more than 40 marks = 80% of girls = 80% of 40 = 32.
No. of students who scored more than 40 marks = 60% of Total Students = 60
Therefore No. of boys who scored more than 40 marks = 60-32=28
No. of boys who scored less= Total boys – Boys(scored more) = 60-28=32
Fraction=(scored less)/Total boys = 32/60 =8/15
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Most Upvoted Answer
In a class, 60% of the students are boys and in an examination, 80% of...
A.8/15
Explanation: Assume Total no of students = 100 60% of the students are boys. so Boys=60,Girls=40 No. of girls who scored more than 40 marks = 80% of girls = 80% of 40 = 32.
No. of students who scored more than 40 marks = 60% of Total Students = 60 Therefore No. of boys who scored more than 40 marks = 60-32=28 No. of boys who scored less= Total boys – Boys(scored more) = 60-28=32 Fraction=(scored less)/Total boys = 32/60 =8/15
Community Answer
In a class, 60% of the students are boys and in an examination, 80% of...
A.8/15
Explanation: Assume Total no of students = 100 60% of the students are boys. so Boys=60,Girls=40 No. of girls who scored more than 40 marks = 80% of girls = 80% of 40 = 32.
No. of students who scored more than 40 marks = 60% of Total Students = 60 Therefore No. of boys who scored more than 40 marks = 60-32=28 No. of boys who scored less= Total boys – Boys(scored more) = 60-28=32 Fraction=(scored less)/Total boys = 32/60 =8/15
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In a class, 60% of the students are boys and in an examination, 80% of the girls scored more than 40 marks(Maximum Marks:150). If 60% of the total students scored more than 40 marks in the same exam, what is the fraction of the boys who scored 40 marks or less.a)8/15b)7/15c)4/5d)1/5Correct answer is option 'A'. Can you explain this answer?
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