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

[Q]: Problem: the cost of the paint is rs . 50 per kg . if 1 kg of paint covers 20 sq . ft , how much will it cost to paint outside of a cube having 20 feet each side
[A]: rs . 6000


[Q]: Problem: . 005 / ? = . 01
[A]: . 5


[Q]: Problem: 100 people are attending a newspaper conference . 35 of them are writers and more than 38 are editors . of the people at the conference , x are both writers and editors and 2 x are neither . what is the largest possible number of people who are both writers and editors ?
[A]:
26