In a row of 40 girls, when Purnima was shifted to her left by 4 places, her number from the left end of the row became 10. What was the position of Swati from the right end of the row if Swati was three places to the right of Purnima's original position?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 24th
Purnima’s original place is found first, then Swati’s place from the left, and that is turned into a place from the right using position from the left + position from the right = total + 1 (the girl herself is counted from both ends).
Moving 4 places to the left brought Purnima to 10th from the left, so she was \(10+4=14\)th from the left before the move
Swati is 3 places to the right of that, so she is \(14+3=17\)th from the left
From the right end: \(40+1-17=\) 24th
