15 * M * 32 = 20 * 6
M = 20 * 6 \ 15 * 32
M = 120 \ 480
M = 0.25
Проверка:
15 * 0.25 * 32 = 20 * 6
120 = 120
15 * M * 32 = 20 * 6
M = 20 * 6 \ 15 * 32
M = 120 \ 480
M = 0.25
Проверка:
15 * 0.25 * 32 = 20 * 6
120 = 120