Certain numbers of the people are seated in a straight line facing north. A sits fifth to the left of B. Two persons are sitting B and C. The number of persons between B and D is two more than the number of persons between C and A. Four people sits between E and B. D sits at the extreme left of the line and is not to the right of B. Three persons sit between E and F. F does not sit at the extreme end of the line.
Solution :
