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Directions: Read the following information to answer the question,
Consider a group consisting of 4 students - Reena, Beena, Meena and Neena, who stand in a row. Reena and Beena stand respectively at the sixth and seventh positions from left. Meena and Neena stand respectively at the fourth and fifth positions from right. When Beena and Meena exchange their positions, Beena is fifteenth from left.
Q. After the exchange of positions between Beena and Meena, what is Meena's position from right?
  • a)
    5
  • b)
    10
  • c)
    12
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?
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Directions: Read the following information to answer the question,Con...
When Beena and Meena exchange their positions, Beena is fifteenth from left.
This means before the exchange, Meena was fifteenth from left.
It is also given that Meena is fourth from right.
This means the total number of persons in the row is 15 + 4 − 1 = 18.
Now, since Meena is at Beena's place, Meena would be seventh from left or twelfth from right as 7 + 12 − 1 = 18.
Hence, the correct option is (C).
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Directions: Read the following information to answer the question,Con...
Solution:

Given Information:
- Reena and Beena stand respectively at the sixth and seventh positions from left.
- Meena and Neena stand respectively at the fourth and fifth positions from right.
- When Beena and Meena exchange their positions, Beena is fifteenth from left.

Let's first find the total number of students in the row:

Total number of students = Number of students from left to Reena + Number of students from right to Neena - 2 (to remove the double counting of Reena and Neena)

Total number of students = 6 + 5 - 2 = 9

So, there are 9 students in the row.

Now, let's find the original positions of Beena and Meena:

- Beena is at the seventh position from left.
- Meena is at the fourth position from right.

Let's represent the positions of the students from left to right using numbers:

1 2 3 4 5 6 7 8 9
R E E N A B E E N A N

After Beena and Meena exchange their positions, Beena is fifteenth from left. Let's represent the new positions of the students from left to right using numbers:

1 2 3 4 5 6 7 8 9
R E E N M B E E N A N

Now, we need to find the position of Meena from right.

We know that there are 9 students in the row and Beena is at the 15th position from left after the exchange. This means that there are 6 students to the right of Beena.

So, the position of Meena from right = 6th position from right - 1 (to remove the position of Neena) = 5th position from right.

Therefore, Meena's position from right after the exchange of positions between Beena and Meena is 5. Hence, the correct option is (c) 12.
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Solutions for Directions: Read the following information to answer the question,Consider a group consisting of 4 students - Reena, Beena, Meena and Neena, who stand in a row. Reena and Beena stand respectively at the sixth and seventh positions from left. Meena and Neena stand respectively at the fourth and fifth positions from right. When Beena and Meena exchange their positions, Beena is fifteenth from left.Q. After the exchange of positions between Beena and Meena, what is Meena's position from right?a)5b)10c)12d)None of theseCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free.
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