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

[Q]: Problem: if the radius of a circle is decreased 60 % , what happens to the area ?
[A]: 84 % decrease

[Q]: Problem: if log 2 = 0.3010 and log 3 = 0.4771 then the value of log 4.5 is :
[A]: 0.6532

[Q]: Problem: if x < y < z and y - x > 11 , where x is an even integer and y and z are odd integers , what is the least possible value of z - x ?
[A]:
1