Mathematics · Levelling and Surveying Calculations

A levelling process is carried out to establish the Reduced Level (RL) of point R with respect to the Bench Mark (BM) at P. The staff readings taken are: Station P: BS = 1.655 m, RL = 100.000 m Station Q: BS = -0.950 m, FS = -1.500 m Station R: FS = 0.750 m If the RL of P is +100.000 m, then the RL (in m) of R is: