Forty girls are standing in a row facing the North. Amita is eleventh from left end and Sanjana is thirty first from the right end of the row. How far will Smita, who is third to the right to Amita in the row, be from Sanjana ?

4th

Here,

Amita is 11th from the left.

Sanjana is 31st from the right, it means she has (40 - 31=) 09 girls to her left. So she is on 10th position from the left.

Therefore, the position of Amita from Sanjana is immediate right.

ATQ, Position of Smita is 3rd to the right of Amita

Hence, Smita is 4th from the right of Sanjana.