In a queue at a bank counter, 13 persons are ahead of Mr Rao and 21 persons are behind him. Mrs Das is the 7th person behind Mr Rao. What is the position of Mrs Das from the back of the queue?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 15th
Find the size of the queue and Mrs Das’s place from the front, then use position from the back = total − position from the front + 1.
13 persons ahead of Mr Rao: he is 14th from the front
Persons in the queue \(=13+1+21=35\)
Mrs Das is the 7th person behind him: \(14+7=21\)st from the front
Mrs Das from the back \(=35-21+1=15\)th
