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 girls, Rita and Monika occupy ninth place from the right end and tenth place from the left end respectively. If they interchange their places, then Rita and Monika occupy seventeenth place from the right and eighteenth place from the left respectively. How many girls are there in the row?


A) 25

B) 26

C) 27

D) Data inadequate

Answer:

Option B

Explanation:

Since Rita and Monika exchange places, so Rita's new positions the same as Monika's earlier position. This position is 17th from the right and 10th from the left.

.'. Number of girls in the row = (16 + 1 + 9) = 26.