You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

lex read another book with 240 pages . if he read the same number of pages for 12 days how many pages did he read every day ?
20

there were 150 book shelves . each book shelf had 15 books . how many books were on the shelves ?
2250

lana had 72 extra nickels . if she put them into stacks with 8 in each stack how many stacks could she make ?

9