Ratio of distance of the school from Mary's home to the distance of school from Rita's home is , Who lives further from to the school ?
As, ratio of distance of the school from Mary's home to the distance of school from Rita's home is ,
Mary's home is at times of the common factor of the ratio where as Rita's home is time of the common factor of the ratio.
It indicates that Mary's home is at more distance in comparision to Rita's home.
Hence, Mary lives further from the school.