Official answer from

Manhattan Prep.

In order to answer the question, we must know the annual rain percentages for each weekday and the proportion each weekday represents relative to the total number of weekdays in year x. (Since we don't know the specific day that year x starts, we cannot assume that Mondays represent exactly 1/5 of the total weekdays in year x, Tuesdays represent 1/5 of the total weekdays in year x, etc.)

(1) INSUFFICIENT: This provides information about the percentage of Wednesday that it rained but this ALONE is not sufficient.

(2) INSUFFICIENT: This provides information about the the percentage of Thursdays and the percentage of Fridays that it rained, but this ALONE is not sufficient.

(1) AND (2) INSUFFICIENT: Both statements together, in conjunction with the information given in the question, provide the annual rain percentages for each weekday during year x. However, because we do not know the proportion each weekday represents relative to the total number of weekdays in year x, we still do not have sufficient information to answer the question.

The correct answer is E.

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