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In a class of 75 students, the number of girls are twice the number of boys, Pankaj ranked 19 from the top. If there are 10 girls ahead of pankaj, then the number of boys after him in rank.
  • a)
    15
  • b)
    16
  • c)
    17
  • d)
    18 ​
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a class of 75 students, the number of girls are twice the number of...
Problem Solving:

Given: Total number of students = 75, Girls = 2 * Boys, Pankaj's rank = 19

To find: Number of boys after Pankaj in rank

Step 1: Find the number of girls and boys in the class
Let the number of boys be x, then the number of girls = 2x
Total number of students = 75
So, x + 2x = 75
3x = 75
x = 25
Therefore, the number of boys = 25 and the number of girls = 50

Step 2: Find Pankaj's rank among all the students
Pankaj's rank = 19
Number of girls ahead of Pankaj = 10
Number of boys ahead of Pankaj = Pankaj's rank - Number of girls ahead of Pankaj
= 19 - 10
= 9

Step 3: Find the number of boys after Pankaj in rank
Total number of boys = 25
Number of boys ahead of Pankaj = 9
Number of boys after Pankaj = Total number of boys - Number of boys ahead of Pankaj
= 25 - 9
= 16

Answer: Therefore, the number of boys after Pankaj in rank is 16. Hence, the correct answer is option B.
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In a class of 75 students, the number of girls are twice the number of boys, Pankaj ranked 19 from the top. If there are 10 girls ahead of pankaj, then the number of boys after him in rank.a)15b)16c)17d)18 e)None of theseCorrect answer is option 'B'. Can you explain this answer?
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In a class of 75 students, the number of girls are twice the number of boys, Pankaj ranked 19 from the top. If there are 10 girls ahead of pankaj, then the number of boys after him in rank.a)15b)16c)17d)18 e)None of theseCorrect answer is option 'B'. Can you explain this answer? for LR 2025 is part of LR preparation. The Question and answers have been prepared according to the LR exam syllabus. Information about In a class of 75 students, the number of girls are twice the number of boys, Pankaj ranked 19 from the top. If there are 10 girls ahead of pankaj, then the number of boys after him in rank.a)15b)16c)17d)18 e)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for LR 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a class of 75 students, the number of girls are twice the number of boys, Pankaj ranked 19 from the top. If there are 10 girls ahead of pankaj, then the number of boys after him in rank.a)15b)16c)17d)18 e)None of theseCorrect answer is option 'B'. Can you explain this answer?.
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