human
In one hour, Ezra read twice as many books as Ahmed. Ezra has read 300 books this hour and decided to read 150 more. How many books have they read altogether?
assistant
How many books has Ezra read in total? ** If Ezra has read 300 books this hour and decided to read 150 more in the next hour, he has read a total of 300+150=<<300+150=450>>450
How many books has Ahmed read? ** Since Ezra reads twice as many books as Ahmed, Ahmed has read 450/2=<<450/2=225>>225 books.
How many books have Ahmed and Ezra read altogether? ** Together, Ahmed and Ezra has read 225+450=<<225+450=675>>675 books
#### 675