Mathematics · Surveying
A back sight reading on a Benchmark (BM) of Reduced Level (RL) = 100 m was 2.67 m. The inverted staff reading to the bottom of a girder was 1.5 m. The RL of the bottom of the girder is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1104.17 m✓
- 2109.44 m
- 398.54 m
- 4100.78 m
Correct answer
104.17 m
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