The inverted staff reading (back sight) taken at the soffit of a cantilever beam point A is 2.065m. The staff reading at point B (fore sight) with normally held staff is 1.250 m. The RL of point B is ______.
Take reduced level at point A as 100 m.
1
97.935 m
2
100.815 m
3
96.685 m
4
99.185 m