The following readings were successively taken in levelling work 2.230, 1.605, 0.990, 2.090, 2.865 level instrument was shifted after 3rd reading. If R.L of first station XXXXXXXXXXm, the R.L of other...

The following readings were successively taken in levelling work 2.230, 1.605, 0.990, 2.090, 2.865 level instrument was shifted after 3rd reading. If R.L of first station 100.000 m, the R.L of other stations will be

Option 1:

100.625, 101.240, 100.140

Option 2:

101.605, 100.990, 102.090, 100.865

Option 3:

100.230, 100.625, 101.240, 100.465

Option 4:

100.625, 101.240, 100.465