Question

In a row of girls, Rita and Monika occupy the ninth place from the right end and tenth place from the left end respectively. If the interchange their places, then Rita and Monika would occupy seventh 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 1

The correct option is B $26$

Since Rita and Monika exchange places, so Rita's new position is the same as Monika's earlier positions. This position is 17 th from the right and 10th from the left
$\therefore$ Number of girls in the row $=(16+1+9)=26$.