Lily types 15 words a minute and takes a 2-minute break every 10 minutes. How long does it take for Lily to type 255 words?
Let's be accurate as possible. Think before you answer.
19
It would take Lily 255 words / 15 wpm = 17 minutes to type without taking a break.

Since Lily takes a break after 10 minutes of typing she takes 17 minutes + 2 minutes = 19 minutes.

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So, the final answer is 19