q = 1 - (5 / 15) = 1 - (1/3) = 2/3
Ответ: 2/3
q = 1 - (4 / 8) = 1 - (1/2) = 1/2
Ответ: 1/2
q = 1 - (6 / 9) = 1 - (2/3) = 1/3
Ответ: 1/3