Question 336065
let the numbers be x, x+2, x+4
sum = 3x+6
25<3x+6<40
add -6 
25-6<3x+6-6<40-6
19<3x<34
divide by 3
19/3 < x < 34/3
6.3< x<11.3
{7,9,11} {9,11,13}, {11,13,15}