1.

Rita and Monika are 9th from the right and 10th from the left respectively in a row of girls. If both of them interchange their positions with each other then the position of Rita and Monika becomes 7th from the right and 18th from the left respectively. What is the total number of girls in the row?

A. 25
B. 26
C. 27
D. data is insufficient
Answer» C. 27


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