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 of Amita in the row, be from Sanjana?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 4th
To compare places in a row, write every position from the same end. A girl who is \(r\)th from the right in a row of \(n\) is \((n-r+1)\)th from the left.
Amita: 11th from the left
Sanjana: 31st from the right, so \(40-31+1=10\)th from the left
Smita: third to the right of Amita, so \(11+3=14\)th from the left
Smita is \(14-10=4\) places to the right of Sanjana
