Drawing the diagram according to given information :
S is the starting point of Shardul. O is the end point of Shardul. Distance between S and O = SO. SO = (ST + TO) m SO = (55 + 18) m SO = 73 m. Shardul is facing towards East. Shardul is in East direction 73 m far from starting point. Hence, the correct answer is "73 m, east".