X^2-10x+8=0 by completing the square
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Answer:
We will divide the 15 days in five periods of 3 consecutive days each.
Now to solve this we will use the pigeonhole principle.
This states that if (N+1) pigeons occupy N holes, then some hole must have at least 2 pigeons.
So, we have n=300 pigeons and k=5 holes.
Hence, there is a period of 3 consecutive days in which the website was hit at least 60 times.