TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: company c sells a line of 20 products with an average retail price of $ 1,200 . if none of these products sells for less than $ 400 , and exactly 10 of the products sell for less than $ 1,000 , what is the greatest possible selling price of the most expensive product ?

SOLUTION: 11000

PROBLEM: Problem: students at a school were on average 180 cm tall . the average female height was 170 cm , and the average male height was 184 cms . what was the ratio a of men to women ?

SOLUTION: 5 : 2

PROBLEM: Problem: the number of positive integer solutions for the equation x + y + z + t = 30 is

SOLUTION:
3654