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In a raw of girls, Ravina is 15th from the left and Mohini is 18th from the right.if they interchange their positions, Mohini becomes 15th from the left. How many girls are in the row?
  • a)
    33
  • b)
    48
  • c)
    47
  • d)
    Data inadequate
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?
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In a raw of girls, Ravina is 15th from the left and Mohini is 18th fro...
Option D
( In order to solve this question, we must know the position of either Ravina or Mohini from both ends)
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In a raw of girls, Ravina is 15th from the left and Mohini is 18th fro...
Ravina and Mohini's Positions

Ravina is 15th from the left end of the row, while Mohini is 18th from the right end of the row.

Interchanging Positions

If Ravina and Mohini interchange their positions, Mohini becomes 15th from the left end of the row.

Determining the Number of Girls in the Row

To find out the total number of girls in the row, we need to consider both Ravina's and Mohini's positions.

Let's assume the total number of girls in the row is 'n'.

When Ravina is 15th from the left end, the number of girls to the left of her is 14 (15 - 1).

Similarly, when Mohini is 18th from the right end, the number of girls to the right of her is also 17 (18 - 1).

Now, when Ravina and Mohini interchange their positions, Mohini becomes 15th from the left end.

This means that the number of girls to the left of Mohini will be 14.

Since Mohini was initially 18th from the right end, the number of girls to the right of her should have been (n - 18).

But now, the number of girls to the right of Mohini is 17.

Equating the Two Scenarios

Now, we can equate the two scenarios and solve for 'n'.

14 (number of girls to the left of Mohini) + (n - 18) (number of girls to the right of Mohini) = 17 (number of girls to the right of Mohini after interchange)

14 + (n - 18) = 17

n - 4 = 17

n = 21

Therefore, the total number of girls in the row is 21.

Conclusion

The statement in the question does not provide enough information to determine the exact number of girls in the row. Hence, the correct answer is option D) Data inadequate.
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Study the following information carefully and answer the questions given below.Eight persons viz. M, N, O, P, Q, R, S and T are sitting around a square table such that all of them are facing towards the center, but not necessarily in the same order. Four persons are sitting in the corners whereas four persons are sitting in the middle of the sides of the table. After throwing a dice, each person is moving in a certain direction as per the given conditions.Two persons sit between M and O, where one of them sits at the corner of the table. S sits to the immediate left of M. The number of persons sitting between S and O is one more than the number of persons sitting between M and N. S and N didn’t sit opposite to each other. One person sits between T and R, where none of them sits adjacent to S. Q neither sits at any of the corners nor sits adjacent to R. Atleast one person sits between P and R when counted from both sides. Q doesn’t sit facing T.All the persons are allowed to throw a dice once in alphabetical order. Based on the outcome and the following conditions, they are moving to certain positions as given.I. If the outcome is an odd number (except odd prime numbers), then the person interchanges his position with the one who sits second to the left of him.II. If the outcome is a prime number, then the person interchanges his position with the one who sits to the immediate right of him.III. If the outcome is an even number (except even prime number), then the person interchanges his position with the one who sits third to the right of him.IV. If none of the conditions follow, then the person remains in the same position.V. The following is the outcome of all the persons in the alphabetical order from left to right: 2 6 4 3 1 6 5 1.VI. The second person throws the dice, only after the first person changes his position and so on.How many persons in the initial arrangement remain unchanged in their position when compared to the final arrangement after movement?

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In a raw of girls, Ravina is 15th from the left and Mohini is 18th from the right.if they interchange their positions, Mohini becomes 15th from the left. How many girls are in the row?a)33b)48c)47d)Data inadequatee)None of theseCorrect answer is option 'D'. Can you explain this answer?
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In a raw of girls, Ravina is 15th from the left and Mohini is 18th from the right.if they interchange their positions, Mohini becomes 15th from the left. How many girls are in the row?a)33b)48c)47d)Data inadequatee)None of theseCorrect answer is option 'D'. Can you explain this answer? for Banking Exams 2024 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about In a raw of girls, Ravina is 15th from the left and Mohini is 18th from the right.if they interchange their positions, Mohini becomes 15th from the left. How many girls are in the row?a)33b)48c)47d)Data inadequatee)None of theseCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Banking Exams 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a raw of girls, Ravina is 15th from the left and Mohini is 18th from the right.if they interchange their positions, Mohini becomes 15th from the left. How many girls are in the row?a)33b)48c)47d)Data inadequatee)None of theseCorrect answer is option 'D'. Can you explain this answer?.
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