TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: what is the greatest prime factor of 2 ^ 10 - 1 ?

SOLUTION: 3

PROBLEM: Problem: a group of men decided to do a work in 55 days , but 15 of them became absent . if the rest of the group did the work in 60 days , find the original number of men ?

SOLUTION: 180

PROBLEM: Problem: a house wife saved $ 5 in buying an item on sale . if she spent $ 48 for the item , approximately how much percent she saved in the transaction ?

SOLUTION:
10 %