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Q. In a row of boys, Jai is eighth from the right and Krish is twelfth from the left. When Jai and Krish interchange positions, Krish becomes twenty first from the left. Which of the following will be Jai’s position from the right? 
a)8th 
b)17th
c)21st 
d)Cannot be determined
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Q. In a row of boys, Jai is eighth from the right and Krish is twelfth...
**Given Information:**
- Jai is eighth from the right.
- Krish is twelfth from the left.
- When Jai and Krish interchange positions, Krish becomes twenty-first from the left.

**To Find:**
- Jai's position from the right after the interchange.

**Solution:**
Let's analyze the given information step by step.

1. Initial Positions:
- Jai is eighth from the right.
- Krish is twelfth from the left.

2. Interchanging Positions:
- When Jai and Krish interchange positions, Krish becomes twenty-first from the left.
- This means that Jai moves to the left and Krish moves to the right.
- Since Krish was initially twelfth from the left and becomes twenty-first from the left, he moves 9 positions to the right.
- Therefore, Jai also moves 9 positions to the left.

3. Finding Jai's New Position:
- Jai was initially eighth from the right.
- After moving 9 positions to the left, Jai's new position from the right will be 8 + 9 = 17.

Therefore, Jai's position from the right after the interchange is 17th.

Hence, option B) 17th is the correct answer.
Free Test
Community Answer
Q. In a row of boys, Jai is eighth from the right and Krish is twelfth...
Difference between Krish positions(21-12)= 9
then jai's position after interchange will be 9 + 8=17
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Q. In a row of boys, Jai is eighth from the right and Krish is twelfth from the left. When Jai and Krish interchange positions, Krish becomes twenty first from the left. Which of the following will be Jai’s position from the right?a)8thb)17thc)21std)Cannot be determinedCorrect answer is option 'B'. Can you explain this answer?
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