You are at an elevation 380 m above sea level as you start a motor ride. During the ride, your elevation changes to following meters: 540 m, -268 m, 116 m, 490 m, -844 m, and 94 m. What is your elevation relative to the sea level at the end of the ride (in m)?

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A line of levels has been run from a bench mark of elevation 23.47 m and ends at another benchmark of elevation 23.50 m. The sum of the Backsights is 16.26 m and that of the Foresights is 16.29 m. The closing error is-0.06

The correct option is A -0.06Measured value = ∑BS−∑FS =16.26−16.29 =−0.03m True value = Last RL - First RL =23.50−23.47 =0.03m ∴ error = M.V - TV =−0.03−0.03 =−0.06m

A line of levels has been run from a bench mark of elevation 23.47 m and ends at another benchmark of elevation 23.50 m. The sum of the Backsights is 16.26 m and that of the Foresights is 16.29 m. The closing error is
-0.06

The correct option is A -0.06
$Measured value = \sum B S - \sum F S$

$= 16.26 - 16.29$

$= - 0.03 m$

True value = Last RL - First RL

$= 23.50 - 23.47$

$= 0.03 m$

$∴$ error = M.V - TV

$= - 0.03 - 0.03$

$= - 0.06 m$