A page of a level book was defaced so that the legible figures are given in the table.
Where, BS = Back sight IS = Intermediate sight; FS = Fore sight RL = Reduced Level.
|
Station |
BS |
IS |
FS |
RL |
Remarks |
|
1 |
1.785 |
|
|
105.450 |
BM |
|
2 |
2.130 |
|
X1 |
104.290 |
|
|
3 |
|
1.905 |
|
X2 |
|
|
4 |
|
1.030 |
|
X3 |
|
The value of Reduce Level X3 = ?
1
105.450
2
104.290
3
104.515
4
105.390