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In a leveling work, sum of the Back Sight (B.S.) and Fore Sight (F.S.) have been found to be 3.085 m and 5.645 m respectively. If the Reduced Level (R.L.) of the starting station is 100.000 m, the R.L. (in m) of the last station is ______ .
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- 97.440
- 57.440
- 21.230
- 17.414
Correct Option: A
∑BS = 3.085
∑F.S = 5.645 m
Fall = ∑FS – ∑BS
= 5.645 – 3.085 = 2.560
R.L of last station = R.L of first station – Fall
= 100 – 2.560 = 97.44 m
