Discussion Forum



In this type of questions, generally, the ranks of a person-both from the top and from the bottom are mentioned and the total, number, of persons, is asked. However, this question is put in the form of a puzzle of interchanging seats by two persons.

1)

In a row of boys, A is thirteenth from the left and D is seventeenth from the right. In this row, A is eleventh from the right then what is the position of D from the left?


A) 6th

B) 7th

C) 10th

D) 12th

E) None of these

Answer:

Option B

Explanation:

Clearly, A is 13th from the left and 11th from the right end of the row.

So, number of boys in the row = (12 + 1 +10)= 23.

Now, D is 17th from the right.

Number of boys to the left of D = (23 - 17) = 6.

Hence, D is 7th from the left end of the row.