A
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A. During one year the ratio of milk prices per quart to bread prices per loaf was 3.00, whereas during the next year the ratio was 2.00.
(a) Find the arithmetic mean of these ratios for the 2-year period.
(b) Find the arithmetic mean of the ratios of bread prices to milk prices for the 2-year period.
(c) Discuss the advisability of using the arithmetic mean for averaging ratios.
B. The bacterial count in a certain culture increased from 1000 to 4000 in 3 days. What was the average percentage increase per day?
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