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

Problem: a solution contains 8 parts of water for every 7 parts of lemonade syrup . how many parts of the solution should be removed and replaced with water so that the solution will now contain 25 % lemonade syrup ?
2.14

Problem: a store reduced the price of all items in the store by 12 % on the first day and by another 10 % on the second day . the price of items on the second day was what percent of the price before the first reduction took place ?
79.2

Problem: the area of a circular field is 13.86 hectares . find the cost of fencing it at the rate of rs . 4.80 per metre .

6336