The following observations were made during the testing of a dumpy level:
|
Staff reading at |
Instrument on |
|
|
A |
B |
|
|
A |
1.740 |
2.240 |
|
B |
2.100 |
3.000 |
The R.L of A is 432.000 meters, calculate the R.L of B if the distance between A and B is 200 m.
1
433.120
2
432.560
3
431.440
4
430.880