Lizzy: Jacob can write twice as fast as Nathan. Nathan wrote 25 letters in one hour. How many letters can the two write in 10 hours together?.
Me: Hmmm, let me think. I think this is the detailed solution:
User
Since Nathan writes 25 letters in an hour, Jacob writes 25 * 2 = 50 letters in an hour. Together, they write 50 + 25 = 75 letters in an hour,. In 10 hours, they'll write a total of 75 * 10 = 750 letters. Final answer: 750.
Assistant