There are 15+10 = <<15+10=25>>25 students in the class

375 books were divided equally among them for a total of 375/25 = <<375/25=15>>15 books each

15 girls will get a total of 15*15 = <<15*15=225>>225 books

# Answer

225
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
There are 15 girls and 10 boys in Ms. Smith's class. She divided 375 books equally among them. How many books did all the girls get combined?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
225
There are 15 girls and 10 boys in Ms. Smith's class. She divided 375 books equally among them. How many books did all the girls get combined?
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