ЯсноПонятно24

значения a, b, c и d.

Из условия имеем: a * 6 * c * d = ad = 20

Так как a, c и d - целые числа, то возможные варианты их значений такие: a = 1, c = 1, d = 20, b = 5 a = 2, c = 1, d = 10, b = 4 a = 4, c = 1, d = 5, b = 3 a = 5, c = 1, d = 4, b = 2 a = 10, c = 1, d = 2, b = 1 a = 20, c = 1, d = 1, b = 0

Таким образом, возможные значения a, b, c и d: a = 1, b = 5, c = 1, d = 20 a = 2, b = 4, c = 1, d = 10 a = 4, b = 3, c = 1, d = 5 a = 5, b = 2, c = 1, d = 4 a = 10, b = 1, c = 1, d = 2 a = 20, b = 0, c = 1, d = 1