On Monday, Mack writes in his journal for 60 minutes at a rate of 1 page every 30 minutes. On Tuesday, Mack writes in his journal for 45 minutes at a rate of 1 page every 15 minutes. On Wednesday, Mack writes 5 pages in his journal. How many pages total does Mack write in his journal from Monday to Wednesday?
Let's be accurate as possible. Think before you answer.
10
On Monday, Mack writes 60 / 30 = 2 pages.

On Tuesday, Mack writes 45 / 15 = 3 pages.

In total, from Monday to Wednesday, Mack writes 2 + 3 + 5 = 10 pages.

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The answer is 10