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    Question

    In a city, the average rainfall for the first five days of

    a week was 98 cm, while the average rainfall for the last five days was 105 cm. If the average rainfall for the entire week was 102 cm, determine the rainfall on the fifth day of the week.
    A 150 cm Correct Answer Incorrect Answer
    B 200 cm Correct Answer Incorrect Answer
    C 250 cm Correct Answer Incorrect Answer
    D 301 cm Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total rainfall for the first five days = 98 ├Ч 5 = 490 cm

    Total rainfall for the last five days = 105 ├Ч 5 = 525 cm

    Total rainfall for the whole week = 102 ├Ч 7 = 714 cm

    Rainfall on the fifth day = {(490 + 525) тАУ 714} = 301 cm

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