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

[EX Q]: Problem: if | 5 x - 20 | = 100 , then find the sum of the values of x ?
[EX A]: 8

[EX Q]: Problem: when positive integer n is divided by 5 , the remainder is 1 . when n is divided by 7 , the remainder is 3 . what is the smallest positive integer k such that k + n is a multiple of 40 .
[EX A]: 7

[EX Q]: Problem: a cube has five of its faces painted half red and half white . the other face is completely painted white . what is the ratio between the red painted areas and the white painted areas of the cube ?
[EX A]:
5 : 7', 'e ) 2 : 3'