The task is to generate the correct answer for a given math problem.
--------
Question: Problem: a man , a woman and a boy can together complete a piece of work in 3 days . if a woman alone can do it in 6 days and a boy alone in 18 days , how long will a man take to complete the work ?

Answer: 9 days


Question: Problem: if 32.5 % of the 880 students at a certain college are enrolled in biology classes , how many students at the college are not enrolled in a biology class ?

Answer: 594


Question: Problem: evaluate : 7899665 - 12 * 3 * 2 = ?

Answer:
7899657