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

[Q]: Problem: 1370 , x , 1070 , - 180 , - 6430
[A]: 1320

[Q]: Problem: how many integers n are prime numbers in the range 200 < n < 220 ?
[A]: 1

[Q]: Problem: if the cost price of 60 articles is equal to the selling price of 40 articles , then what is the percent profit ?
[A]:
50 %