The task is to generate the correct answer for a given math problem.

Example Input: Problem: a salt manufacturing company produced a total of 2000 tonnes of salt in january of a particular year . starting from february its production increased by 100 tonnes every month over the previous months until the end of the year . find its ave 66 rage daily production for that year ?
Example Output: 83

Example Input: Problem: a farmer with 1,350 acres of land had planted his fields with corn , sugar cane , and tobacco in the ratio of 5 : 2 : 2 , respectively , but he wanted to make more money , so he shifted the ratio to 2 : 3 : 4 , respectively . how many more acres of land were planted with tobacco under the new system ?
Example Output: 300

Example Input: Problem: the percentage increase in the area of a rectangle , if each of its sides is increased by 20 % is ?
Example Output:
44 %