1.

The respective storm totals at three surrounding stations , and are 110, 90 and 70 mm. If the normal annual precipitation amounts at stations , , and are respectively 1000, 1100, 1200 and 1250 mm, the estimated storm precipitation at is

A. 75 mm
B. 77 mm
C. 79 mm
D. 81 mm.
Answer» C. 79 mm


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