A backsight (BS) reading taken by a level instrument set at station A on a bench mark (RL = 210.852) is 2.325 m, and foresight (FS) at a station is measured as 1.835 m. What will be the reduced level (RL) of the station A?
1
210.362 m
2
211.654 m
3
211.342 m
4
210.842 m