The ratio of the age of a father to that of his son is 5:2. If the product of their ages is 1,000, what is the father's age?

माना आयु 5x और 2x है। (5x)(2x) = 1000 => 10x² = 1000 => x² = 100 => x = 10। पिता की आयु = 5 * 10 = 50 वर्ष।