If BM 12 has an elevation of 27.048 meters and is higher than BM 13, what is the most probable elevation of BM 13?

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Multiple Choice

If BM 12 has an elevation of 27.048 meters and is higher than BM 13, what is the most probable elevation of BM 13?

Explanation:
If one benchmark has a higher elevation than another, the lower benchmark must have a smaller elevation. BM12 is higher than BM13, so BM13 must be below 27.048 m. Among the options, the value that best matches the typical drop between adjacent benchmarks in this context is 26.181 m, since 27.048 − 26.181 = 0.867 m. This makes it the most probable elevation for BM13. The other options would imply different drops (0.857, 0.877, or 0.887 m) that don't align with the shown relationship as closely.

If one benchmark has a higher elevation than another, the lower benchmark must have a smaller elevation. BM12 is higher than BM13, so BM13 must be below 27.048 m. Among the options, the value that best matches the typical drop between adjacent benchmarks in this context is 26.181 m, since 27.048 − 26.181 = 0.867 m. This makes it the most probable elevation for BM13. The other options would imply different drops (0.857, 0.877, or 0.887 m) that don't align with the shown relationship as closely.

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