Question

Average temperature of a week is 30, that of the first 3 days is 28 and the next 3 days is 31.What is the temperature of the last day?

Answer 1

33

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Answer 2

Answer:

33 degree is the temp. Of last day

Step-by-step explanation:

Let the temp. of last day be 'x'.

Mean = fixi/fi

Therefore,

28+28+28+31+31+31+x / 7= 30

By solving we get,

x = 33