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 they interchange their places, then Rita and Monika occupy 17${}^{th}$ place from the left and 18${}^{th}$ place from the right respectively. How many girls are there in the row?

• A. 25
• B. 26
• C. 27
• D. Data inadequate
• E. None of these

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 position. This position is 17${}^{th}$ from the left and 9${}^{th}$ from the right.

$\therefore$ No. of girls in the row = 16+1+9 = 26