Question

The Johnson twins were born twelve years after their older sister. This​ year, the product of the three​ siblings' ages is exactly 1663 more than the sum of their ages. How old are the​ twins?

Answer 1

Twins' age = S - 5

(S = Sister's Age)

S(S - 5)² = S + S - 5 + S - 5 + 4450

S(S - 5)² = 3S - 10 + 4450

S(S - 5)² = 3S + 4440