TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: if the radius of a circle is decreased 60 % , what happens to the area ?

SOLUTION: 84 % decrease

PROBLEM: Problem: of the diplomats who attended a summit conference : 20 spoke japanese , 32 did not speak russian and 20 % of the diplomats spoke neither japanese nor russian . if 10 % of the diplomats spoke both japanese and russian , then how many diplomats attended the conference ?

SOLUTION: 120

PROBLEM: Problem: a towel , when bleached , was found to have lost 20 % of its length and 10 % of its breadth . the percentage of decrease in area is

SOLUTION:
28 %