instruction:
The task is to generate the correct answer for a given math problem.
question:
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 ?
answer:
2.14


question:
Problem: the perimeter of a triangle is 36 cm and the inradius of the triangle is 2.5 cm . what is the area of the triangle
answer:
b ) 45


question:
Problem: the speed of a train is 90 kmph . what is the distance covered by it in 12 minutes ?
answer:

18