In a row of children Kalpana is 9th from the left and Saneha is 13th from the right. When they exchange their positions, then Kalpana becomes 18th from the left. What is the new position of Saneha from the right end of the row?

Correct option is A

Step 1: Determine the total number of children in the row

1. Kalpana is 9th from the left.
2. After exchanging positions, Kalpana becomes 18th from the left.

This means:

Total children in the row=Kalpana’s new position from the left+Saneha’s original position from the right−1Total children in the row = Kalpana's new position from the left + Saneha's original position from the right - 1Total children in the row = Kalpana’s new position from the left+Saneha’s original position from the right−1 Total children=18+13−1=30

Total children = 18 + 13 - 1 = 30

Total children=18+13−1=30

Step 2: Find Saneha's new position from the right

After exchanging positions:

• Saneha's new position from the left is the same as Kalpana's original position, i.e., 9th from the left.

To calculate her new position from the right:

New position from the right = Total children − New position from the left+1New position from the right = Total children - New position from the left + 1New position from the right = Total children − New position from the left + 1 New position from the right = 30 − 9 + 1 = 22

New position from the right = 30 - 9 + 1 =22

New position from the right = 30 – 9 + 1 = 22

Final Answer: Saneha's new position from the right is 22nd.