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					 A levelling is carried out to establish the Reduced Levels (RL) of point R with respect to the Bench Mark (BM) at P. The staff readings taken are given below.

If RL of P is + 100.000 m, then RL (in m) of R is 
- 
                        
-  103.355 
 -  103.155 
 -  101.455 
 - 100.355
 
 -  103.355 
 
Correct Option: C
HI = RL + BS 
RL = HI – FS 
We find HI & RC from given values 
Given RL at P is + 100 m.