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(A) 25 (B) 200 (C) 450 (D) 500 (E) 620 200. The average daily rainfall for the past six days is 3.22 inches. How many inches of rain must fall on the seventh day for the average daily rainfall over the past week to be 3.40 inches? (A) 2.76 (B) 3.25 (C) 3.97 (D) 4.48 (E) 4.72